GitHub Visualizer - Enter user/repo and see the project visually
Awesome GitHub Topics - Top 500 topics on GitHub that's filtered and categorized
Github Profile Visualizer - Tool for visualizing GitHub profiles
git:logs - The definitive list of open source resources on Github
The GitHub Matrix Screensaver - Latest commits from GitHub visualized Matrix-style
Mailbrew - Automated email digests from Twitter, Reddit, YouTube & more