SourceForge is a free service to Open Source developers offering easy access to the best in CVS, mailing lists, bug tracking, message boards/forums, task management, site hosting, permanent file archival, full backups, and total web-based administration. Find it at http://sourceforge.net.

SourceForge is also a part of 'Tavi's InterWiki. This means that if you enter in text in the style of "SourceForge", with a colon (:), followed by text, it will be automatically translated into a link. For example, WikkiTikkiTavi, which is hosted on SourceForge, has it's project page at SourceForge:projects/tavi.