A wiki is a page or collection of Web pages designed to enable anyone who accesses it to contribute or modify content, using a simplified markup language. Wikis are often used to create collaborative websites and to power community websites. The collaborative encyclopedia Wikipedia is one of the best-known wikis. Wikis are used in business to provide intranets and Knowledge Management systems.
"Wiki" (/wiːkiː/) is a Hawaiian word for "fast". {From Wikipedia}


7 things You Should Know About Wikis





Good Wiki Sites (Free)

Wikispaces - http://www.wikispaces.com

WetPaint - http://www.wetpaint.com