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Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer can have comments, each users can write one individual answer and …

Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Shapado is an open source question-answer system written in Ruby, Mongomappe and Mongodb

Social Q&A network! Send and receive anonymous questions, and find out what others think about you.

The Mission Our patented knowledge-sharing process, combined with the advantages of the Internet, allow us to change the way people solve their technology problems, gather information and share knowledge. The …

Answers is the place to go to ask questions and receive answers from the community at large on any topic. Connect with people who know the answers to your questions …