Git's repositories
git-scm.com
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.
git-reference
Online Git Reference at http://git.github.io/git-reference/
git.github.io
Git Developer Pages (This is NOT the place to discuss Git issues. See: https://git-scm.com/community)
gitscm-old
Git homepage that rocks - from the git.or.cz awesomeness
sha1collisiondetection
Marc Stevens's sha1collisiondetection, for use by git.git as its submodule