Deriving from the Hawaiian term "wiki" ("fast"), a wiki is a website
allowing multiple users to collaborate online on the same project. The
wiki concept became quite popular in 2000. At any time, users can
contribute to drafting content, edit it, improving it, and updating it.
The wiki has been used for example to create and manage dictionaries,
encyclopedias, or reference tools. The software can be simple or more
elaborate. A simple program handles text and hyperlinks. With a more
elaborate program, one can embed images, charts, tables, etc. The most
famous wiki is Wikipedia.