Question2Answer (Q2A) is a popular open source Q&A platform for PHP/MySQL, currently running on 24,500+ sites in 40 languages.
What is a Question & Answer site?
A Q&A site helps your online community to share knowledge. People with questions get the answers they need. The community is enriched by commenting, voting, notifications, points and rankings.
Why offer Q&A on my site?
Your members will enjoy the interaction that Q&A enables, and will visit your site more regularly. In addition, many web searches are questions, so Q&A content will attract search engine traffic.
Core Q&A features
- Fast integrated search engine.
- Categories (up to 4 levels deep) and/or tagging.
- Voting, comments, follow-on and closed questions.
- Points-based reputation management.
- RSS, email notifications and personal news feeds.