Simple Machines Forum — SMF in short — is a free, professional grade software package that allows you to set up your own online community within minutes.
Its powerful custom made template engine puts you in full control of the lay-out of your message board and with our unique SSI - or Server Side Includes - function you can let your forum and your website interact with each other.
phpFlickr is a class written by Dan Coulter in PHP4 to act as a wrapper for Flickr's API. Methods process the response XML and return a friendly array of data to make development simple and intuitive.
Drigg is a powerful Drupal module written by Tony Mobily, that allows you to promote stories automatically based on your users' votes. Unlike other Drupal and non-drupal solutions, you can do this with amazing simplicity.
Elgg is an open, flexible social networking engine, designed to run at the heart of any socially-aware application. Building on Elgg is easy, and because the engine handles common web application and social functionality for you, you can concentrate on developing your idea.
It runs on Apache, PHP and MySQL - the same open source platform that the majority of web applications are written in. Elgg is compatible with enterprise technologies like the Zend Platform and any server environment that can run the Apache web server.
Elgg supports technologies like OpenDD, OpenID and OpenSocial, and they are directly involved in community efforts to push the envelope when it comes to data portability, federation and the user experience. Elgg is a great way to future-proof your social applications.