Github is version control for software development and so much more. Whether it's a weekend side project, your favorite open source library, a startup destined for glory, or your company's app, github helps everyone work together better by providing tools for easier collaboration and more visibility. Catch up on what happened while you were out of the office or ask for help on a tricky chunk of code by issuing a Pull Request, all through a gorgeous web interface that integrates with your favorite tools. Check it out — open source is free!
Website(s):
http://www.github.com
