Other
Wiki Wiki Web
This site is the home of the first ever Wiki site, created for the Portland Pattern Repository in 1995. The site now hosts tens of thousands of pages. This particular page give an introduction to Wikis for visitors.
Wikimedia
Wikipedia: The Free Encyclopedia
Wikipedia is a free-content encyclopedia, written collaboratively by people from around the world. The site is a wiki, which means that anyone can edit articles simply by clicking on the "edit this page" link. You may read and edit...