Description: Google Reader was a popular RSS/Atom feed aggregator developed by Google. It allowed users to subscribe to feeds and view updates from blogs, news sites, and other web content in one interface. Google Reader shut down in 2013.
Type: software
Pricing: Free
Description: Stack Overflow is a popular question and answer site for programmers. Users can ask coding questions and receive answers from a community of developers. The site has a reputation system to rate helpful responses.
Type: software
Pricing: Subscription