What is a Wiki Site?

According to Wikipedia, the world's largest wiki site:

A Wiki ([ˈwiː.kiː] <wee-kee> or [ˈwɪ.kiː] <wick-ey>) is a type of website that allows users to add, remove, or otherwise edit and change most content very quickly and easily.

That's basically it! As a part of Wikidot.com network this site is a customizable piece of the Internet where users can read and edit content, upload files, and collaborate. Specifically, it's meant to be an information repository for the staff and players of Lament, a fantasy MUD.