About Answers
Answers.com is an Internet-based knowledge exchange, which includes WikiAnswers, ReferenceAnswers, VideoAnswers, and five international language Q&A communities.
OSQA
Developer: OSQA.netClone/Category of : Answers,Q&A,Stack Overflow,Yahoo! Answers
License :Free and Open SourceLanguage :Python
OSQA is a free, entry-level Q&A system from the makers of AnswerHub, the market-leading professional Q&A platform. OSQA is a great solution for smaller sites with limited needs. Professional users who want custom theming, advanced security, SSO integration or plugin support should look at AnswerHub instead.
About Q&A
Q & A, generally meaning "Questions and answers". A Q&A web site that keeps a database of questions and answers that users can search and add to.
About Stack Overflow
A language-independent collaboratively edited question and answer site for programmers.
About Yahoo! Answers
Yahoo! Answers is a community-driven question-and-answer (Q&A) site or a knowledge market launched by Yahoo!
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