The Learning Haskell guide has been moved to a git repo to enable outside contribution
Find it here: https://github.com/bitemyapp/learnhaskell
This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.
Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.