Description: Corebook° is an open-source, privacy-focused alternative to Facebook. It allows users to connect with friends and family, share updates, photos, and links, join groups, and organize events. As it's open-source, Corebook° promises no data mining of user information for advertising.
Type: software
Pricing: Open Source
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