Wikipedia
Created | Updated Dec 12, 2002
The system works by people creating documents as links from other documents. When you create a link that doesn't exist, clicking on that link creates a new page, which can then receive new information and new links.
However, the truly dynamic aspect of this software is the ability to edit pretty much anything, even other users' pages. With this, you can improve articles to the nth degree.
Since January 2001, Wikipedia has just under 100,000 articles. The term Wiki wiki means quick in Hawaiin.
The advantage of the wiki system is the ease of its mark up language, allowing people to easily create links from one article to another.