ShareSource is a service and the underlying free software offered for free to Open Source developers that provides easy access to SVN, bug tracking, message boards/forums, task management, site hosting, permanent file archival, full backups and daily repository snapshots.
ShareSource was created to give a simple, easy to use site so application developers can get back to writing code, not administrating websites.
ShareSource has all the tools you need to help your team from any location collaborate, like bug trackers, forums and private messages. Tools to create and control access to Subversion, a popular and well regarded version control system.