git/git-scm.com

Git Developer Pages (This is NOT the place to discuss Git issues. See: https://git-scm.com/community)

Git for Windows' home page

A free and open-source platform to learn Git and GitHub. It is designed to be simple and easy to understand for beginners.

A curated list of amazingly awesome Git tools, resources and shiny things

Open source courseware for Git and GitHub

Git Source Code Mirror - This is a publish-only repository but pull requests can be turned into patches to the mailing list via GitGitGadget (https://gitgitgadget.github.io/). Please follow Documentation/SubmittingPatches procedure for any of your improvements.

An interactive git visualization and tutorial. Aspiring students of git can use this app to educate and challenge themselves towards mastery of git!

An interactive Git learning game!