Fireclip is a pretty interesting Firefox add-on. It allows you to select and save part of a website, say a weather report, a web comic or anything else that you can think of, and load the saved part later to see if there have been any updates to it.
This means you can check for web updates without having to visit the actual website. It’s a bit like RSS News Feeds but more flexible since you can select any element on the website and monitor that one.
Have you ever been annoyed that services like Muxtape (which is currently unavailable, thanks to the RIAA), Favtape or other playlist-based music sites don't let you download songs? The better sites offer a link to purchase the songs through the iTunes Store or Amazon.com, but the rest just stream the music. And once the player moves on to the next song, that song is gone.
Or is it? Most services like the ones above rely on Flash or JavaScript to obfuscate URLs and make it difficult, though not impossible, to download the actual files.
Mozilla Thunderbird is the safe, fast email client that's easy to use. It has lots of great features including quick message search, customizable views, support for IMAP/POP, RSS support and more. Plus, the portable version leaves no personal information...