Github Profile Visualizer - Tool for visualizing GitHub profiles
TLDR pages - The TLDR pages are a community effort to simplify the beloved man pages with practical examples.
GitHub Visualizer - Enter user/repo and see the project visually
cheat - Cheat allows you to create and view interactive cheatsheets on the command-line.
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
CheatKeys - View Windows keyboard shortcuts in the current application.