Hacker News Stack - Focus on the really fresh and unread news in Hacker News.
GitSpo - Measure & engage your open-source community
Hacker Newsletter - Best of Hacker News in your inbox every Friday.
Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.
Box Piper Hacker News - Re-Imagined Hacker News for this decade.
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.