GitSpo - Measure & engage your open-source community
ctrl tab - replace your new tab page with the data that matters to you
Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.
Tech Overdose - A tech aggregator for dev junkies 👨💻
Ruby Toolbox - Explore and compare open source Ruby libraries
Hacker News Front Page Explorer - A database of top ranking Hacker News front page posts