A wiki is a website that uses wiki software, allowing the easy creation and editing of any number of interlinked (often databased) Web pages, using a simplified markup language. Wikis are often used to create collaborative websites and to power community websites. The collaborative encyclopedia Wikipedia is one of the best-known wikis.  Wikis are used in business to provide intranet and knowledge management systems. Ward Cunningham, the developer of the first wiki software, WikiWikiWeb, originally described it as "the simplest online database that could possibly work."

From Wikipedia

Wikis in Plain English

Watch the video below to get a good understanding of what a Wiki is and how it works.

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Used with permission from CommonCraft

Recorded Online Workshop: Wikis in Education

Wikis in Education

Duration 1:48
Date: 2/9/09
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This class will focus on uses of Wikis in K-12 education. We will define what a wiki is and discuss the strengths and weaknesses of this technology. Together, we will explore different educational wikis and their uses and contribute to a community wiki.