In an interesting turn of events Linus Torvalds has put a copy of the Kernel Git repo up on GitHub.  Interesting to see the code show up on a second location.  Github is a great place to store or find opensource projects.  They make their money by doing private Git hosting.  The tool is easy to use and can give you more tree level controls than standard Git provides.  If you are looking for a cool place to work on your opensource project or a secure place to store your companies projects take a look at it.