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Yahoo Buzz Opens Doors To Everyone

Buzz, Yahoo’s Digg-like effort to leverage reader gestures and third party content in determining the most popular news, removes it’s barriers to entry tonight.

Until now only a hundred or so invited publishers could post news to Buzz. This was a big plug - Yahoo pushes a few Yahoo Buzz stories to their home page every day, resulting in huge, server-melting traffic surges to the lucky third party sites. Starting tonight, the invitation requirement is gone, and anyone can submit their stories to Buzz.

It’s hard to compare Buzz to Digg. Like AOL’s Propeller, they chose to add editorial discretion in determining headlines to reduce gaming. That also seems to make users less interested in participating, though. In Yahoo’s case the fact that they promote headline stories on the home page of Yahoo gives them a huge traffic boost, which skews results.

Stories can be submitted here once it goes live in a few hours.

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Digg Debuts Its First Firefox 3 Extension

In a post to the official Digg blog, Kevin Rose has announced a new Digg extension for Firefox 3 that incorporates a toolbar and notification system into the popular browser that should appeal to heavy and casual Digg users alike.

In a video introducing the extension, Kevin Rose says that its main purpose is to get a feel for what features users would like to see incorporated into future releases. The extension was developed for Firefox 3, but users can download a Firefox 2 compatible extension here.

Small notification messages now appear in the bottom right of the browser window, displaying updates on topics you’re covering along with your friends’ recent activity (you can specify what events you’d like to receive notifications for). The collapsible toolbar includes a counter that indicates how many Diggs and comment the current page you’re browsing has received, and includes a “Digg It” button that allows you to submit and Digg stories without having to visit the site.



Digg Firefox 3 Extension from Kevin Rose on Vimeo.

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New Recommendation System = 40 Percent More Diggs

One month after launching its new recommendation system, Digg is already reporting positive results. Digg recommends stories based on other members with similar voting patterns and interests. Chief scientist Anton Kast writes on the Digg Blog:

- Digging activity is up significantly: the total number of Diggs increased 40% after launch.

- The Recommendation Engine is running strong: at any given point in time, the system is generating over 54 Million Recommendations, with the average Digger having nearly 200 Recommendations from an average of 34 “Diggers like you”.

- Friend activity/friends added is up 24%.

- Commenting is up 11% since launch.

Digg’s recommendation engine takes a Last.fm approach to finding people’s whose tastes overlap with yours and then suggesting stories they’ve Dugg up but that you’ve missed. It is collaborative filtering for news.

As Digg becomes more mainstream, it needs technologies such as this to bring it back to its glory days when everybody was interested in the same niche categories. Social recommendations work best when they are extracted from niche communities who are obsessive about one or two topics. Digg started out as a haven for hardcore techies, but has branched out.

The recommendation system is designed to, in effect, help Diggers carve out their own niche communities again. If you happen to like tech industry news, you will see stories from other like-minded Diggers. If you prefer politics or sports, you’ll get those stories. And if you like a combination, the system will grab recommendations from each appropriate bucket.

At least, that is how it is supposed to work in theory. The recommendations seem decent. But I personally haven’t noticed anything that really strikes home. Over time, it should get better.

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Google Walks Away From Digg Deal

The Google/Digg acquisition negotiations were in full swing as of last Tuesday, had passed the term sheet stage and the two companies were in final negotiations in the $200 million range. But sometime this last week Google decided to walk from the deal. Digg was notified on late Thursday or Friday.

Google was in the due diligence stage of the deal, where they peer deep into Digg’s technology and financial statements. Most term sheets are non binding, so anything that gives the buyer pause can be used as an excuse to walk away - but generally the buyer already has a very good idea what they are getting well before the term sheet stage.

Two sources close to the companies suggested that some issue that came up during technical due diligence was to blame. One source said that the issue was more personality driven, and that Google decided after spending more time with Digg’s top team that there just wasn’t a fit.

Either way the deal appears to dead and can be added to the long list of failed Digg acquisition deals. And when a company is “left at the altar” other buyers are usually hesitant to step in.

So what will Digg do now? We’re hearing they’ll just push through with a new round of financing. Digg hired Allen & Co. to represent them in the sale, but the investment bank is just as good at closing massive venture financings, too (they represented both Slide and Ning in their recent a half billion dollar valuation financings).

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Digg To (Finally) Integrate OpenID, If This Picture Is To Be Believed

When Digg’s Lead Architect Joe Stump took the stage at the Facebook Developer Conference in San Francisco earlier today, something in one of his screen shots caught our attention. He was there to show how users will soon be able to log in to Digg without an account via their Facebook credentials (the new Facebook Connect product). But also included prominently in the screen, but not mentioned by Stump, was an option to log in via OpenID.

Digg founder Kevin Rose promised OpenID integration at a conference in early 2007, but the company has been silent on it since then. Like many other companies, they seemed to enjoy the positive press that the announcement made but were unwilling to schedule the development time to actually implement it.

Facebook Connect isn’t slated to go live until the Fall, and we assume they’ll push OpenID at the same time. We asked OpenID’s David Recordan what he knew - he said he noticed the same thing we did but doesn’t have any additional information on when or if Digg would finally implement the single sign-on solution. We also have an email in to Digg for comment.

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Liveblogging the Facebook Developer Conference

The TechCrunch team is on site at the Facebook Developer conference, and we’ll be live blogging the news. Mark Zuckerberg’s Keynote starts at 1:30 pm PST.

Facebook’s press release is here.

Live Coverage

In a press briefing after the keynote, Zuckerberg stated “I wish I knew” when asked when the anticipated payments system would launch. He also hinted that Facebook is working on launching improved search, but they aren’t close to launching it yet.

2:49 PM: That’s it. The show is over.

2:48 PM: Great Apps can integrate with users just like native Facebook apps, and they get early access to features. The Great Apps program is in alpha stage and the first two partners are iLike and Causes. There will be a strong enforcement system with all apps, and they will disable apps that are a problem. Over the last year they’ve disabled apps for violation of privacy or other policies. They take this very seriously, he says.

2:47 PM: The second announcement is the Facebook Great Apps Program (Top Tier program). They embody all ten of the guiding principles, and they advance the mission of Facebook.

2:46 PM: They’re announcing two new programs: a verification program is first - this is the lower tier of the two programs. Starting in September they will invite apps that are secure, respectful and transparent to apply to be verified. Trusted apps get a special badge in the directory and app page. (we posted on this earlier, here)

2:44 PM: They have partnerships with partners to help developer (Microsoft), host and scale. They are launching a new developer website that gives all the information needed for a quick start. He says 1000 apps have been submitted to the Facebook fund. They are revealing the names of fbFund’s recipients to date: Challenge, ConnectedWeddings, Podclass, MyListo, Trazzler, Zimride, LuckyCal, Coursefeed, Hotberry, and J2Play.

They are announcing a new competition today. $2M will be given out over the next two months. Facebook will select 25 finalists who will each get 25k. Users will vote on finalists who will each get 250k.

2:43 PM: He says they must keep the ecosystem safe for users and fair for developers. A year ago equal distribution became overwhelming to users, then they made restrictive changes that hurt apps. Going forward they will have different rules. They are announcing several programs to help app developers. Get Started Quickly tools like adding easy FBML tags.

2:42 PM: He says that they’ve learned a lot in the last year, as they’ve had lots of challenges. Facebook is listening to the community. They’re trying to partner more closely with developers. He says they are making organizational changes that let developers incorporate feedback during the dev process, and they’re creating full time community management organization

2:40 PM: “Security is a big part of it, apps can’t share information with other users unless they obey privacy settings. Apps must also be respectful of the users attention and time. Don’t make users invite 20 friends before you use the app, or spam friends without them knowing. Apps must be very transparent. Users should get what they expect when they click, not an interstitial ad. Design is also important - clean design is a must. And apps must be fast loading and responsive. As the apps get faster, users use them more. Apps need to focus on being robust and scaling properly as they grow.”

2:39 PM: “Building trustworthy applications is important because we live in an ecosystem with network effects. If users leave, everyone suffers. Apps must be safe and trusted.”

2:37 PM: He says apps must be useful. The carpool app is great example, which lets users find carpool buddies. “Apps must also be expressive”- The graffiti app that lets users draw on friends profiles, is a good example. Finally, meaningful apps must be engaging. He says Playfish makes games that are highly engaging. Facebook users have played over 900 million minutes of Playfish games. That’s about 1800 years.

2:35 PM: Benjamin is announcing “guiding principles for great applications” which are based on dialog with community. It’s based on three pillars: meaningful, trustworthy and well designed. The best apps make use of the social graph. Applications must be social. A good example is the Lil Green Patch app, which helps users fight global warming by interacting with other users.

2:33 PM: Benjamin Ling, Director of Platform Program Management is now on stage talking about the “State of Platform.” He says that over $200m has been invested in Facebook apps, $34m this week alone. Additionally, 13 different ad networks have launched that pay out tens of millions of dollars to app developers. He says, “venture capital, ad networks, developers and academics are the ecosystem that makes Facebook platform a success.”

2:32 PM: Mark wraps things up, that appears to be the end of the announcements.

2:31 PM: Zuckerberg asked all Facebook employees who work on platform to stand up, then asked all app developers to stand up.

2:29 PM: “Give people the power to share and make the world more open and connected.” - Facebook’s mission statement

2:28 PM: To recap, he’s talked about new profiles and the highlighting of the news feed, the second item is Facebook Connect. The new profile launched Monday, he says. Facebook Connect will launch developer keys starting today - there will be a beta period.

2:26 PM: That’s it for launch partners. Mark is back on stage.

2:25 PM: A new site will have a “my friends” tab that shows reviews by friends in various cities.

2:23 PM: Mike Philips from Citysearch is taking the stage. He says they are launching a new site, where sharing information is a big piece. They are integrating with Facebook Connect. When a user looks for a hotel, restaurant, etc., Citysearch already has lots of reviews and data, but not a way to link up reviews from friends.

2:22 PM: When you login to comment, users can sign in via Movable Type or Facebook. If you sign in with Facebook, it will display changes - light blue boxes outline your friend’s comments.

2:20 PM: David Recordon from Six Apart just took the stage. They are releasing a plugin for Movable Type that allows people to comment using their Facebook profiles. Users can decide to profiles or keep them private.

2:17 PM: Digg is now allowing people to sign into Digg via Facebook or OpenID. There is no requirement to sign up for a Digg account.

2:15 PM: Launch partners are now coming on stage. First up is Digg by Joe Stump.

2:13 PM: Facebook Connect can show you which of your Facebook friends are also on the outside service, so you can link up with them there too. They are also allowing people to leave comments and requests on third party sites.

2:12 PM: Facebook Connect will let applications share data with Facebook. Users can bring Facebook friends with them to outside sites.

2:11 PM: Mark is now talking about Facebook Connect.

2:10 PM: He says he wants Facebook to be the platform and tools provider, but let apps do anything social they want.

2:08 PM: Mark says we are going to see the decentralization of social networking into apps on the web. Things will decentralize further, apps can run anywhere on the web, not just on social network platforms. They will all work together, just be decentralized.

2:05 PM: People (including us) are writing wall posts for Mark since he has his profile live on stage, but it looks like he’s actually using a fake profile, it shows just 8 friends.

2:03 PM: Mark is now showing a live demo of the new home page.

2:02 PM: Mark says they haven’t completely gotten rid of app boxes, they’re added a tab for them. Some apps really need them. Users can also add tabs for individual apps.

1:59 PM: He says the apps that leverage the news feed the best will be the ones that succeed.

1:58 PM: “The most important part of the profile is the wall and the news feed, which have now been merged. They also give developers an incentive to build apps that let users share a lot of information. This is a lot better than an application box, which people don’t interact with as much.”

1:56 PM: Mark is now talking about the new profile pages and how it fits in with their current goals.

1:54 PM: Mark says that over the last year Facebook hasn’t done enough to reward applications that provide a lot of long term value, and they haven’t punished the ones abusing the system.

1:53 PM: Mark is talking about lessons Facebook has learned. He says that they released the platform as quickly as possible, it wasn’t fully baked yet, and they didn’t anticipate the huge adoption.

1:52 PM: Mark says the most powerful tool on Facebook today is the News Feed. Traffic went up by 50% when they first launched news feed in late 2006.

1:51 PM: Mark is now talking about the social graph, a concept he introduced at the first f8 conference.

1:49 PM: LivingSocial just announced they received $5M in Funding, Flixster received $6M from Allen and Company, and Zynga got $29M from Kleiner Perkins Caufield & Byers. Zuckerberg says, “There has been more than $200 million invested in the ecosystem.”

1:47 PM: David Glazer (Director of Engineering, Friend Connect) is here in the audience (which is about 1500 people), it looks like he will announce something. Perhaps they are announcing some kind of agreement.

1:45 PM: “We’re opening up the translation tool to allow apps to be translated as well…We now have more than 400k developers building on top of the platform. The developer community is spread around the world. More than half are outside of the US.

1:43 PM: Mark is now talking about opening up Facebook for translations made by users. They started with Spanish and French, and now the site is available in over 60 languages.

1:41 PM: Mark is looking back over the last year and says it’s been pretty crazy. Over 24 million people were using Facebook a year ago - today they are at 90 million people.

1:38 PM: Mark says its time to take the Facebook platform to the next level. On a recent vacation he realized (1) they want to build a product that really lets you connect with people, and (2) they want to extend the concept of presence, have more open connections and share more. They want to make the world a more open place

“The most important information is only available if people share it, and have the power and the tools to do so”

1:35 PM: Mark takes the stage and welcomes the crowd.

1:30 PM: Still waiting for Mark Zuckerberg to take the stage.

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It’s Facebook Day! Say Hello To The Three Tier App System

Update: Our live notes from Mark Zuckerberg’s Keynote are here.

Today is definitely Facebook day as they hold their second annual F8 developers conference in San Francisco. Last year they released their developer platform, which led competitors to hurriedly release their own competing offerings. What’s in store for tomorrow? We’ve made our predictions, and CEO Mark Zuckerberg takes the stage at 1:30 to make his keynote, and workshops will follow all day after that. The full schedule is here.

Some of the news is breaking early. For example, we will almost certainly see the Facebook payments platform launch in some form, for example - Facebook desperately wants to find a way to help application developers make money beyond advertising, and the iPhone App Store has shown that people are willing to pay for quality applications.

Even more certain is the launch of Facebook Connect, which will allow third party services to authenticate Facebook users and merge profile data into their offerings. Digg will be one of their launch partners, and will show off the new product on stage, say our sources. However, neither CEO Jay Adelson or Founder Kevin Rose will attend the event.

We’ve also heard from sources that Facebook will announce a tiering system for applications, confirming our previous post in March. Five to ten top tier apps, which have proven themselves trustworthy and which create as good or better a user experience as what Facebook is able to create itself, will be named in the near future. iLike (music) and Causes (charity) will be announced tomorrow, and more will come soon. We heard that Flixster (movies) was on the short list but was bumped at the last minute - perhaps due to their MySpace partnership announced yesterday.

Other apps will be grouped into a middle tier, where most of them will fall, and a bottom “unwashed masses” tier for untrustworthy or spammy apps that have little user value. Each tier will have different rules for engaging with users, particularly around invites, messaging and entry into the news feed.

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Google In Final Negotiations To Acquire Digg For “Around $200 Million”

Google’s on and off negotiations with Digg have been back on in a big way for the last six weeks, we’ve heard from multiple sources inside and outside of Google. The two companies have reportedly signed a letter of intent and are close to a deal that will bring Digg under the Google News property. The acquisition price is in the $200 million range, says one source.

We first wrote about the Google-Digg negotiations in March. Despite a vigorous denial by Digg CEO Jay Adelson the negotiations continued, although Google’s Marissa Mayer reportedly cooled on the company for a period of time.

The companies are now in final negotiations according to our sources, although it could be a couple of weeks before it closes. And while the major deal points have been agreed on, the acquisition could still fall apart. Microsoft, which was previously interested in the company, may be willing to step back in at a much lower price.

Most of Digg’s revenue comes from a three year ad deal with Microsoft, which will be terminated on a sale to Google. Digg has raised $11.3 million in venture capital.

Meanwhile, Google’s fascination with the Digg voting concept continues.

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Propeller 2.0 Launches: Ditching The Vote Count, Adding A Mascot

Propeller, AOL’s Digg-like news site, launches version 2.0 later this morning. The site sports a new design and logo and now has a mascot - described as “part professor, part citizen journalist” (see image below).

But the biggest feature change is the removal of a pure Digg-like vote count. In its place is an algorithm based popularity ranking of 1-10, which takes into account “many more aspects of participation” when determining popularity. Voting on a story is now called the more nebulous “prop it.” The service has also cut down the number of news categories. Those remaining include Arts & Entertainment, Business & Finance, Family, Humor, News, Science & Technology, Sports and Style.

Taking a page from the Yahoo Buzz playbook, headlines from the service will also be integrated directly into AOL and AOL News.

Propeller has had a rocky history. It first launched in June 2006 under the Netscape.com domain as “a better Digg” in that paid editors chose the top stories from user-submitted and voted links. Soon the site was paying top Digg users to move to them.

In August 2007 rumors circulated that the site was going to be shut down. We called it “Kaput” last September, but we were wrong: the site would live on under a new domain, Propeller.com.

Netscape traffic promptly spiked downward, but Propeller, led by general manager Tom Drapeau, filled the gap and has had steady growth since then.

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Is This The Future Of Search?

The video above shows a user interface being bucket tested by Google to select (probably randomly determined) users. Earlier today we showed a screen shot of the interface and a video of the search history, recorded by Adrian Pike, the CTO of startup Tatango. This new video, however (also recorded by Pike), shows the full Google search experience with a very Digg-like interface. Users vote search results up or down - a down vote makes it dissapear with a “poof,” an up vote moves the result to the first page.

Google is also testing comments, with linked user names, and others can vote those comments up and down. In effect, this bucket test shows a Google that combines their search algorithm with every important feature of Digg. It’s something they’ve been working on for nearly a year in various iterations, but this is the first time we’ve seen user comments, and the video shows details that you just can’t experience via screen shots.

If feedback on this is positive look for it to be added to the Google Search experimental site where anyone can opt in to use it. It’s still many steps away from being integrated into everyday search on Google, but this shows quite clearly where their head is at - Digg.

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Google Continues To Test A Search Interface That Looks More Like Digg Every Day

A couple of days ago we posted screen shots of a new search interface being bucket tested by Google that lets users vote up or down on search results. The resulting interface was very Digg-like, and included a total vote count, etc.

Today Adrian Pike, the CTO of startup Tatango, noticed that the interface changed yet again and now includes user comments. Like Digg, each comment has an up or down vote feature as well, and Google is using thumbs up and down icons that are exactly the same as those on Digg. The comments show the username of the person leaving it, and clicking on it shows their Google account profile.

Also, Google shows the total number of votes both up and down on each result. If you hit the X down vote button, the result is immediately pulled off the screen.

He sent in the screen shot above as well as two videos. We’re working on the videos and will post them shortly.

Update: First Video, where Pike’s access to the new search features was temporarily disabled. The new interface subsequently came back up, we are still uploading that video:

Update 2: The second video is here.

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Digg Is Pushing More Traffic To Traditional News Sites


As Digg becomes more mainstream, so are the headlines linked to on its homepage. The once tech-heavy site long ago expanded into other categories such as entertainment, world, and business news. But that change is finally hitting its home page, either because Digg is attracting more mainstream users who are Digging more mainstream stories or it is using other (algorithmic) methods to point its firehouse in the direction of mainstream media. (Comscore shows 15.4 million unique visitors in May, and 6.3 million U.S. visitors in June).

Hitwise released some data today indicating that Digg now sends nearly as much traffic to entertainment sites as it does to news and media sites. As the chart above shows, 21.3 percent of its traffic goes to the former, while 20.7 percent goes to news and media sites. A year ago the gap between the two categories was a 50 percent gap, now it is a 3 percent gap. The traffic sent to entertainment sites as a percentage of Digg’s total outgoing traffic is down 20 percent, while the traffic it pushes to news and media sites is up 16 percent (although both are down since April).

This data confirms a trend that Allen Stern at CenterNetworks noticed last week. Namely, that UK newspapers in particular, like the Guardian, are showing up a lot more often on Digg’s homepage, displacing more familiar tech sites such as Ars Technica, Engadet, and Gizmodo. (When I checked today, about half of the stories on Digg’s homepage linked to traditional news sites). He also speculated whether this meant that Digg is trying to sell itself to the Guardian, which bought the blog network that owns PaidContent last week for an estimated $30 million.

That seems like a stretch, but showing that it can drive more traffic to traditional media sites would certainly make Digg more appealing to any potential acquirer. There has been no shortage of acquisition rumors over the years, but it would make more sense for a semi-neutral technology company like Microsoft or Google to make a bid than a media company with ts own properties to promote.

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Gosh, How Many Diggs Does It Take To Get To The Home Page, Anyway?

Back in June 2005 when I first wrote about Digg (six days after starting TechCrunch), it took just 15 diggs and a story was automatically sent to the home page of the then small and innocent site (there are lots of old screen shots of Digg in that post). Today it takes an average of 150 or so to get to the Digg home page, although that varies considerably based on the user who submitted the story and the domain name being pointed to.

But tonight some Digg users noticed something a little strange. This story had 936 votes 16.5 hours after it was originally submitted. That’s way beyond what’s normall needed to get on the home page. The next most popular upcoming story in its category had just 178 votes.

If a lot of users vote to bury a story it takes more votes to get to the home page of Digg. But those stories that get a lot of buries tend to be taken off of the upcoming section. In this case, that didn’t happen, and the story just continued to get a ton of votes by users, but was never promoted to the home page (from a brief perusal of the destination story, it seems that this is a story that should have been buried quickly). Perhaps the story just tread a fine statistical line between being promoted and buried, and went on collecting votes until Digg could figure out what to do with it.

So what’s the point? It’s clear Digg is continuing to struggle with vote gaming and trying to maintain their model of letting their users decide what news makes it to the top of the pile. As they add more hurdles and filters, the main side effect seems to be a delay in promoting hot news quickly. It also shows that even a thousand people working together can’t necessarily get a story to the top of Digg. Which is a good thing, I guess.

There are persistent rumors that Digg now employs editors to review upcoming stories before they are promoted, to increase quality. There’s certainly nothing wrong with that, but it does tend to undermine the theory that the crowd can make better decisions on what constitutes “news” than a single human being using common sense and their best judgment. Digg, for their part, deny that editors are involved in story selection.

Digg may ultimately prove to be a great business model for its founders and investors. But the news revolution that it appeared to be be vanguarding may eventually fizzle out. As, perhaps, will users if they ultimately discover they aren’t, in fact, in charge.

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Netvibes Gets All Digg-Like With Buzz

Personalized home page service Netvibes has quietly rolled out a new social feature called Buzz. The Buzz section tracks what links are getting starred the most throughout Netvibes network of home pages.

Netvibes users can star any of the links they like on their homepages, RSS readers, YouTube boxes, Digg widgets, and other widgets. And when items have been starred, they show up in users’ public activity streams, which can be displayed on home pages using an activity widget. With Buzz, these starrings are aggregated and displayed on a Digg-like front page where people can see what others are starring the most.

Buzz hasn’t been formally announced yet, but this is the first new feature we’ve seen since Tariq Krim announced he was stepping down from his CEO position.

While Netvibes lags behind giants iGoogle, My Yahoo! and MyAOL, it is the favorite among many early adopters for being fast and ad-free. With 2.4 million worldwide uniques in May, it makes sense to leverage its traffic for a link popularity tracker. There are already many social bookmarking sites, but adding a feature like this to an already-popular personalized home page service makes for easy adoption.

Buzz is currently on a separate page (and probably still in development), but we expect Netvibes to provide users with a widget that can be used to track popular items on their home pages. The name choice probably won’t go unnoticed by Yahoo either.

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Update: Digg Recommendation Engine Confirmed For This Week

Digg has released some materials around their new Recommendation Engine, which we wrote about last night, and say that it will be released this week. Two overview videos are below, including an interview with Digg Lead Scientist Anton Kast. We’ve also included the text of a white paper on the Recommendation Engine.


Digg Recommendation Engine from Kevin Rose on Vimeo.


Anton Talks About The Digg Recommendation Engine from Kevin Rose on Vimeo.


The Digg Recommendation Engine
People love Digg because it’s a place to discover and share great content from around
the Web. The Digg homepage always has the most popular stories, but many Digg
users find their content in the Upcoming section, which gets over 15,000 new stories a
day. To help users filter this enormous amount of content, we have created a new
feature: The Digg Recommendation Engine.

When you Digg a story, you tell the Recommendation Engine two things: that you
recommend the story to other users and, less obviously, that the users who Dugg the
story before you are good at finding content. The Recommendation Engine keeps track
of users who Dugg particular stories before you did, and it recommends you the stories
they Dugg. The more content you Digg, the smarter the Recommendation Engine
becomes.

Finding Diggers Like You
The Digg Recommendation Engine uses your Digg history over the last thirty days to
make Recommendations. (You can see the number of items you have Dugg over the
last month on the right-hand side of the Recommended view.) Every time you Digg a
story, the Engine matches you with other Diggers who Dugg the same story, and keeps
track of all your Diggs in common with them.

When it’s time to calculate your Recommendations, the Engine draws from this pool of
matched Diggers. For each matched Digger, it computes a correlation coefficient
between you and them. It then picks a cutoff for this correlation coefficient, and the
Diggers who make the cut are called “Diggers Like You.”

It’s easy to understand how the correlations are calculated. For each user with whom
you Dugg something in common, the Engine determines how many stories the two of
you Dugg in common, and divides that number by the total number of stories you or they
Dugg. The ratio is a correlation coefficient, a number between zero and one (zero if you
and the other user never agreed; one if you always did). Such a ratio is sometimes
called a “Jaccard coefficient.”

This scheme automatically accounts for the overall level of Digging activity. If another
user Diggs a lot, they have to agree with you on many stories to become a Digger Like
You. If another user Diggs rarely, then a small amount of agreement can suffice.
2
From Diggers Like You to Recommendations
Once the Engine has determined your Diggers Like You, your Recommendations consist
of stories that your Diggers Like You have already Dugg, minus the stories you already
Dugg or Buried. There are some extra steps, like the diversity rules and the
promotability constraint described below, but this is the basic idea.

Recommendations are always displayed together with your Diggers Like You and their
compatibility percentages. These percentages are just correlation coefficients. You may
notice that you are more compatible with a user that has fewer Recommendations than a
user with less compatibility but with more Recommendations. This is because although
you have Dugg more items in common with the more compatible user, that user has not
Dugg as much.

The Recommendations you get from any particular user will come from topics (such as
Technology or World News) where you have a shared Digging history. We figure that
two users may have similar interests in a subject like ‘playable web games’, but one
person might be into politics while the other follows celebrity gossip. So we actually
compute correlations, Diggers Like You, and compute Recommendations in several
collections of topics independently.

Promotable Stories
Since the Recommendation Engine works only with Upcoming stories, all the stories you
get from the Recommendation Engine are “promotable”, meaning that they are recent
enough to be eligible for the Digg homepage but haven’t appeared there yet. This
means that whenever you Digg one of your Recommendations, you are helping select
stories for the front page of Digg!

Diversity
Just like stories on the homepage, we want your Recommendations to be diverse: a
balanced number of stories, not all on the same topic, and not all Dugg by the same
people.

To make sure that your Recommendations are diverse, the Engine imposes limits that
keep things from getting too focused. It makes sure that no one Digger Like You
determines too many of your stories. It attempts to make your Recommendations reflect
the spectrum of topics that you’ve Dugg in the past, and it adjusts the compatibility cutoff
for Diggers Like You so you don’t get too many or too few stories.

The Engine also limits the influence of any single one of your Diggs. For instance, if you
are Digg number 1,000 on a popular story, you will have 999 similar users from that one
Digg alone, and those users are not necessarily more compatible with you than the two
3
or three who may have Dugg a less popular story you also liked. The Engine limits the
total pool of users you can get from a single Digg to balance things out.

We hope you enjoy using the Recommendation Engine and look forward to helping you
uncover even more great stories on Digg!
Digg on!
Anton Kast – Lead Scientist Digg

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Web2.0: TechCrunch

Leaked Screen Shots Of Mythical Digg Recommendation Engine

Update: Overview videos of the new service and a white paper are here.

Digg has been talking up a new Recommendation Engine that intelligently suggests new stories to users for almost a year. Well, a source says that the company will launch it soon, probably this week. We have some details and a couple of leaked screen shots, which may or may not be real (I’m betting on real).

An average of 16,000 stories a day are submitted to Digg. Most users don’t venture past the handful of popular stories that make the home page. A few brave souls, though, venture into the Upcoming sections, where all the rest of the stories sit until they expire (most of them) or get promoted to the Popular section.

The Upcoming section allows users to sort by category, freshness, number of diggs and number of comments, but the sheer volume of stories means it’s nearly impossible to find interesting news. The new Recommendation Engine section will be replacing Upcoming entirely from what we hear.

Recommendations will be made based on diggs from users who tend to vote in a similar way as you do: “The Recommendation Engine suggests upcoming stories by matching you with Diggers like you.” this is very similar to the way Netflix handles movie recommendations, although since every story on Digg has a shelf life of just 24 hours, it has to work in real time.

Based on the screen shots, users can see like-minded users in the right sidebar along with a compatibility percentage. If you click on one of the users you’ll see the overlap between your and his/her digg voting over the past 30 days (in this case, six stories), and see recommended stories from that user. Users will be able to sort recommended stories via most diggs, most matches, and most recent.

Presumably the users you are similar to will change over time, and there is a button at the top of the screen to remove any particular user if you don’t want to see their recommendations in the future.

digg_url = "http://www.techcrunch.com/2008/06/30/leaked-screen-shots-of-mythical-digg-recommendation-engine/";

My thoughts: it actually looks like a winner. If the algorithm works to properly match me to other users with similar interests, Digg can become the first place I check every day for interesting breaking news in a variety of categories, rather than the place I go when I have a few minutes to see just the massively popular stuff. It will be interesting to see if they get a pop in unique visitors and page views.

We also believe that the Recommendation Engine will be the official introduction of Lead Scientist Anton Kast, who joined the company in 2007 but has been very much behind the scenes until now. Kast reportedly led the project internally.

More screen shots below:


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Web2.0: TechCrunch

Update: Reddit Tries To Compete the Open-Source Way

It is not easy being No.2. As we hinted yesterday, Reddit, the news voting site that was bought by Conde Nast in 2006, is making the code behind its site open source. (The code can be found here). That means anyone can now make their own Digg-like site. Not that there has been any lack of Digg clones in the past. Reddit’s move to open-source its software is merely an acknowledgment that it is already a commodity.

The truth is that it is not the technology that makes sites like Digg or Reddit successful. It is the people who use them. And the more people who use them, the more useful they become. It is a classic, network-effect, winner-take-most market.

And the winner here clearly is Digg (as long as it doesn’t alienate it’s core users), despite valiant efforts by Reddit, Mixx, and others. In May, Digg had more than 20 times as many U.S. visitors and pageviews as Reddit, according to comScore. Even if comScore is undercounting, and the relative gap is only half that much (which is what data from Compete suggests), it is still pretty insurmountable.

(Note that comScore is almost surely undercounting Reddit. It measures only 300,000 unique U.S. visitors in May versus 6.3 million for Digg. Whereas Compete measures 2.4 million versus 24 million, respectively. That is why it is more informative to look at the relative gap than the absolute numbers in this case). Here is a comScore chart comparing pageviews. See how flat Reddit has been all year.

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Web2.0: TechCrunch

Time For Another Kevin Rose “Inside Information” iPhone Rumor

A month before the original iPhone release in 2007, Digg’s Kevin Rose made a set of bold predictions. Citing inside information, he said the device would have a slide out keyboard, a touch screen and two batteries (one for the MP3 player, one for the phone).

The iPhone did indeed have a touch screen.

Now Rose is back with a new prediction on the 3G iPhone next week. He says Apple will be releasing a low end iPhone for just $200. “Now could be a good time to get some Apple stock,” he says. Watch the video below and make your own prediction.

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Web2.0: TechCrunch

The Puppet Interviews Digg’s Kevin Rose

It amazes me that people actually talk to Loren Feldman’s puppet and treat it like a real interview. Example above: this interview with Kevin Rose starts off innocently enough, but goes down hill from there. The only real news value in the story is that Digg’s still working on that recommendation feature. The high entertainment value, including a few seconds about Kevin’s dating life, make for the lack of actual news though.

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Web2.0: TechCrunch

Report: Al Gore’s CurrentTV Offered $100 Million For Digg In 2006

Note: trust me, the picture makes sense once you read the quotes below.

Sarah Lacy’s new book, Once You’re Lucky, Twice You’re Good: The Rebirth of Silicon Valley and the Rise of Web 2.0 (goes on sale on Thursday, pre-order here, get free autographed copy here) does a deep dive into the histories of a number of high profile web startups.

But Lacy was also able to uncover a few stories that were never covered in the day-to-day press. One of my favorites: the story of a failed 2006 attempt by Al Gore’s CurrentTV to buy Digg:

At the meeting Gore ran the room. He charmed everyone on the Digg team. He remembered everyone’s name, and if someone got cut off, he was careful to come back to him and ask him to finish what he was saying. It was quite a contrast to the meeting with Murdoch. “It made me feel so good to know this guy is legit,” Kevin says, remembering and still glowing. “You could just tell.”

They came back a few weeks later. Gore was there again, with a glossy PowerPoint presentation that showed the CurrentTV and Digg logos coming together. Gore was standing in front of the screen, eyes on Kevin, with the Digg logo projected across his forehead. Kevin was trying his hardest to pay attention to what Gore was saying, but he was focusing at this large Digg logo on Al Gore’s forehead, thinking, “Oh. My. God.” That night twenty-nine-year-old Kevin called his parents. “You’re never going to believe what I saw on Al Gore’s forehead today,” he said.

CurrentTV ultimately made an offfer “at least in the range of $100 million,” but Rose and Digg CEO Jay Adelson walked away due to issues of control going forward.

Digg has been the subject of nearly constant buyout speculation, starting with a $4 million offer from Jason Calcanis in 2005 and a rumored $30 million deal with Yahoo in January 2006. More recently we reported their recent efforts to sell through investment bank Allen & Co. The complete history is here.

At the time of the offer, Digg had just 1.3 million or so monthly unique visitors according to Comscore. Today, Comscore says they have 13.3 million worldwide monthly uniques (this is almost certainly lower than actual). But sources have been telling us that they’ve been unable to get to their desired $200 million offer and may be raising money instead.

Web2.0: TechCrunch

Facebook Responds To MySpace With Facebook Connect

Facebook will announce later today Facebook Connect, which has similar functionality to MySpace Data Availability, announced just yesterday. The actual product won’t be released for at least a few weeks, so the timing on this, coming immediately after MySpace, is somewhat suspicious.

It is essentially a new version of their API for third party websites, which was first launched in August 2006.

It will allow users to “connect” their Facebook identity, friends and privacy to any website. Third party websites will be able to implement and offer more features of the Facebook Platform off of Facebook – the same features available to third party applications today on Facebook.

To make data portable, Facebook believes it’s about giving users the ability to take their identity and friends with them around the Web, while being able to trust that their information is always up to date and always protected by their privacy settings. The next iteration will be available publicly within the next several weeks.

One of their initial launch partners will be Digg.

I spoke with Ben Ling, Director Platform Product Marketing, and Ruchi Sanghai, Product Manager for Facebook Platform, this afternoon about the upcoming changes.

Facebook Connect has four primary features:

  • Trusted Authentication – Anywhere during the user’s experience that the developer would like to add social context, the user will be able to authenticate and connect their account in a trusted environment. The user will have total control of the permissions granted. This is a proprietary authentication mechanism, but is more streamlined than the existing method and will not require a redirect back to Facebook.
  • Real Identity – Users can bring their real identity information with them wherever they go on the open Web, including: basic profile information, profile picture, name, friends, photos, events, groups, and more.
  • Friends Access – Users will be able to take their friends with them wherever they go on the open Web. Developers will be able t