Quora
Free
Quora is a question-and-answer site where questions are asked, answered, edited and organized by its community of users.
Steemit
Open Source
Steemit is a social news service which runs a blogging and social networking website on top of a blockchain database, known as Steem.
Question2Answer
Open Source
Question2Answer is a free and open source platform for Q&A sites.
Yahoo! Answers
Free
Yahoo! Answers is a community-driven question-and-answer (Q&A) website.
Voat.co
Open Source
Voat.co is a news aggregator and social networking service where registered community members can submit content such as text posts and direct links.
Slant
Free
Slant Community’s guides to all the best stuff.
AskBot
Freemium
AskBot is a Django/Python Q&A forum.
OSQA
Open Source
OSQA (Open Source Question and Answer) is an open source question-answer system written in PythonLearn More with Django.
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