Wiki

From the Wikipedia article at http://en.wikipedia.org/wiki/Wiki

"A wiki is a type of website that allows the visitors themselves to easily add, remove and otherwise edit and change some available content, sometimes without the need for registration. This ease of interaction and operation makes a wiki an effective tool for collaborative authoring. The term wiki can also refer to the collaborative software itself (wiki engine) that facilitates the operation of such a website, or to certain specific wiki sites, including the computer science site (an original wiki), WikiWikiWeb, and the online encyclopedias such as Wikipedia.

The first such software to be called a wiki, WikiWikiWeb, was named by Ward Cunningham." (http://en.wikipedia.org/wiki/Wiki)

More Information

Wikipedia article at http://en.wikipedia.org/wiki/Wiki