We use MoinMoin for intranet issues and collaboration between several administrators of our network.
I have chosen it mainly because of its gui editor. Before this decision I had compared DekiWiki and Twiki. Despite I made Czech translation for Twiki, finally I prefered MoiMoin.
Messages to me
Welcome Ivan,
hey, we have a Czech translation, too. 
-- ThomasWaldmann 2007-01-11 14:26:35