github social codingOpen-Source software enabled us to build SalesKing and is driving nearly all of our related systems. On this base, it’s a natural thing to contribute some of our work back to the community. To do so, we started using github a while ago.
Our projects consist of ruby, javascript and php code. Most notably is the SalesKing API, giving you an easy access to SalesKing objects from within your ruby code.

Never heard of github?
Github, it is a code hosting platform and provides central git & subversion repositories for project. Besides the code hosting you can setup a wiki, issue trackers and invite people to work on your project.