GitHub Visualizer - Enter user/repo and see the project visually
Random User Generator - Like Lorem Ipsum, but for people.
GHuser - Better GitHub profiles for everyone
Goodbye John Doe - Peculiar names for the placeholder connoisseur
Octohunt - Search to find developers in your city on Github.
Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.