Scripts››Answers,Q&A,Stack Overflow,Yahoo! AnswersClone Script
Answers.com is an Internet-based knowledge exchange, which includes WikiAnswers, ReferenceAnswers, VideoAnswers, and five international language Q&A communities.
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.