Links

Google Wave Preview
google collaboration web2. tools communication social api email wave googlewave

The next generation of online communication. Extremely impressing demonstration of google wave.
Rancho - Home
project management opensource django collaboration software
Secure Git hosting and collaborative development — GitHub
git versioncontrol repository hosting collaboration svn programming coding code development deployment
Beanstalk — Version Control with a Human Face
subversion svn hosting free application collaboration
Chandler Project - Welcome
chandler calendar pim gtd email collaboration opensource