Fandom - The entertainment site where fans come first.
WackoWiki - WackoWiki is a light and easy to install multilingual Wiki-engine.
Miraheze - Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains...
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
MyWikis - A premium wiki host with top-class quality, excellent support, and VisualEditor (a WYSIWYG...
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.