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Git Source Code Mirror - This is a publish-only repository and all pull requests are ignored. Please follow Documentation/SubmittingPatches procedure for any of your improvements.
Git Developer Site
The git-scm.com website. Note that this repository is only for the website; issues with git itself should go to https://git-scm.com/community.
Pre-built HTML Git documentation
Online Git Reference at http://git.github.io/git-reference/
Git homepage that rocks - from the git.or.cz awesomeness
Marc Stevens's sha1collisiondetection, for use by git.git as its submodule