Description: PostgreSQL is an open source, object-relational database management system known for its reliability, performance, and SQL compliance. It runs on all major operating systems and has a rich set of features including complex queries, foreign keys, triggers, views, and ACID compliance.
Type: software
Pricing: Free
Description: Yahoo! Answers is a community-driven question-and-answer site where people post questions on any topic and other members of the community submit answers. It was launched by Yahoo! in 2005 as a way for people to ask and answer questions on a range of topics.
Type: software