Software projects are displayed by Gource as an animated tree with the root directory of the project at its centre. Directories appear as branches with files as leaves. Developers can be seen working on the tree at the times they contributed to the project.
"a tool that lets you host your static site on Google App Engine and update it by pushing to GitHub. Thanks to GitHub post-receive hooks your App Engine site can be updated automatically when you push new content."
A tool to simplify working with remote branches.
Side-by-side comparisons of Git/SVN commands
"You can only really use Git if you understand how Git works." This Git tutorial sucks less than most.