elevio hub - For continuous user education
GitHub Visualizer - Enter user/repo and see the project visually
List.community - Easy way to browse curated lists on GitHub
Learn X in Y minutes - LearnXinYminutes isn’t a good way to learn your first programming language, but it’s a great way to...
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Programming Languages Influence Network - Visualizing influence relations of programming languages