GitSpo - Measure & engage your open-source community
GitHub Contributions - All your GitHub contributions in one image
Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.
GitWrapped - View/Share how you contributed to Github over the years
LibHunt - LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.
GitHub Metrics - Customize your profile with various plugins and metrics