Wikis that use MoinMoin:
 * this one :)
 * [wiki:EfnetCeeWiki:FrontPage IRC channel #c]
 * [wiki:EfnetCppWiki:FrontPage IRC channel #c++]
 * [wiki:EfnetPythonWiki:FrontPage IRC channel #python]
 * [wiki:EfnetXmlWiki:FrontPage IRC channel #xml]
 * [wiki:PythonInfo:Python20Info Python 2.0 Info Area]
 * [http://www.sh.rim.or.jp/~yasusii/ YasushiIwata's Home Page] (Japanese - gives a 404 error ... should be deleted?)
 * [http://www.bioinformatics.org/piperwiki/moin.cgi Wiki for the Piper project]
 * [http://pgdn.org/wiki CultureWiki] (online again, but still dead)
 * [http://compsoc.dur.ac.uk/~tsp/cgi-bin/triki.cgi TrikiWiki] (private wiki for the Transformers holiday - uses a mildly hacked MoinMoin)
 * [http://www.keitee.net/ Keiteedot] (Slash like wiki in Japanese)
 * [http://www.gembook.org/moin/ WikiArea] (Japanese)
 * [http://www.thinkware.se/cgi-bin/thinki.cgi/ Thinki]
 * [http://www.cdegroot.com/cgi-bin/photowiki/ Photo Wiki]
 * [http://www.cdegroot.com/cgi-bin/moin/ cdegroot.com's MoinMoin]
 * [http://seattlewireless.net/ SeattleWireless]
 * [http://www.personaltelco.net/ PersonalTelco]
 * [http://www.bcwireless.net/ BC Wireless]
 * [http://www.alberg30.org/collaborate/ Alberg Wiki]
 * [http://www.linuxvideo.org/docs/wiki/ LiViD Wiki]
 * [http://gstreamer.net/wiki/ GStreamer Wiki]
 * [http://lightingwiki.com/FrontPage The Lighting Wiki]

For more wikis, see the InterWiki list.