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.
Google News - Comprehensive up-to-date news coverage, aggregated from sources all over the world by Google News.
Ruby Toolbox - Explore and compare open source Ruby libraries
Unfiltered.news - What the world is talking about, visualized graphically
GitNews Web - Trending repositories from GitHub, HackerNews & Reddit
News API - Get live headlines from a range of news sources