Wikimedia, MediaWiki & Education in IT discusses Wikimedia projects like Wikipedia that run on MediaWiki software. It explains that Wikimedia's mission is to develop free educational content. MediaWiki is an open-source wiki software originally created for Wikipedia that is now widely used. The document discusses wikis and their use for collaboration in education, with examples like a student wiki at Hong Kong Shue Yan University. It concludes that wikis enable instant reference, common knowledge, two-way learning, and mass collaboration compared to traditional methods.