A wiki is a type of website that allows users to easily add, remove, or otherwise edit and change the content of the webpages. The openness and ease of editing page content makes a wiki an effective tool for collaborative authoring.
 How does it work
A wiki uses a specific markup language to define the contents of a page. The markup language can be augmented with standard HTML when needed. The markup language attempts to provide easy to remember and use markups for common tasks so that a user can edit the pages directly. This Help:Editing page provides the details.
When you view a page in the wiki the page is interpreted by a program running on the server. The server program might, for example, follow a link and display a new page. The page must be converted to a standard html page on the way to your browser so that there are no special requirements for the browser itself. If the page happens to contain standard html markup then this is passed through in the converted document. If you want to see what the html page really looks like you can use your browser to view the 'source' page.
 Wikis of Interest
- Wiki Books - aimed at supplying educational textbooks.
- Text editors.org a wiki on text editors useful for creating eBooks.
- MultiMedia.cx a wiki on all things Mutimedia including formats.
 For more information
- Wikipedia - article on wikis
- MediaWiki - The source for this wiki implementation
- Help - Getting started.
- Wiki Statistics for information on this Wiki.