Fat Free CRM is an open source Ruby on Rails-based customer relationship management platform. Out of the box it features group collaboration, campaign and lead management, contact lists, and opportunity tracking.

The project goal is to spur CRM innovation by providing clean code base that can be easily extended by developers. Check it out and fork away!

Source code of Fat Free CRM is hosted at Github. Other helpful resources:

» Source code downloads
» Guides
» Bug reports and feature requests
» List of available plugins
» Discussion group for users
» Discussion group for developers
» Twitter commit updates
» Senbei: iPhone client software
» Online demo site