A wiki is a webpage that anyone can edit. Wikipedia is the most famous wiki on the web (until the TSR wiki gets huge anyway...). On here, as on Wikipedia, you can create a new page or edit an existing one.
To edit a page you have to be registered on the site, then its just a case of clicking the orange button 'Edit this page' button at the top of an article.
To create a new article click on 'Create new page' which is over there ---> in the wiki tools box
Wiki wiki means “quick” in Hawaiian. The first wiki was created by Ward Cunnigham in 1995.
Wiki isn't a miss-spelling of Wookiee, the big hairy sidekick of Han Solo in the original Star Wars trilogy.
Help editing the wiki Take a look at a video tutorial guide to the basic editing techniques.