Git is a fast version control system used for several open source projects. It was originally written for the linux kernel by Linus Torvalds. I installed a git server on git.twam.info to provide access to my open-source projects.

There is a nice talk from Linus Torvalds about git on youtube which explains the idea of git and differences to popular version control systems like CVS or subversion.

Update (2009-08-10): A few days ago, I moved my projects to github.