17 open source wiki engine/software
MediaWiki is a free and open source server based wiki engine written in PHP developed by Wikipedia. MediaWiki is an extremely powerful, scalable software and a feature-rich wiki implementation, that uses PHP to process and display data stored in its MySQL database. Pages use MediaWiki’s wiki-text format, so that users without knowledge of XHTML or CSS can edit pages easily and instantly.
5 Popular Wiki Software Products
MediaWiki is another free open source choice. Notable as the software that Wikipedia is actually built on, it uses thousands of extensions and hundreds of configuration settings to keep your information organized the right way. In particular, it offers many layers of caching and can even duplicate as many databases as needed.