ASKBOT

ASKBOT is a open source Q&A system similar to StackOverflow, Yahoo Answers and some others. Askbot is based on code of CNPROG, originally created by Mike Chen and Sailing Cai and some code written for OSQA. Refer the Demo site http://askbot.org

• Reputation system similar to Stackoverflow
• Possibility to mark questions and answers community Wiki
• Graphical reputation statistics
• Full featured Markdown editor
• Live preview while editing
• Ability to edit other users' questions
• Revision history
• Graphical diff (highlighting of differences between revisions)
• Basic tagging functionality
• Notification of responses on the user page
• A vote cast can not be retracted anymore after a certain amount of time