pre-commit - A slightly improved pre-commit hook for git
Prompt - Prompt provides fully-integrated writing education solutions, combining instruction, curriculum, and feedback. We support educational institutions, companies, and individuals.
GVfs - Git Virtual File System (by Microsoft)
nodo - Manage your daily tasks in the command line
Git Flow - Git Flow is a very self-explanatory free software workflow for managing Git branches.
Commandline Challenge - Test your command line skills