TiddlyWiki
http://www.tiddlywiki.com/
http://www.tiddlywiki.com/#TiddlyWikiAdaptations
GTD (Getting Things Done) TiddlyWiki
GTD Tiddly Wiki is a GettingThingsDone adaptation by NathanBowers of JeremyRuston's Open Source TiddlyWiki. The purpose of GTD Tiddly Wiki is to give users a single repository for their GTD lists and support materials so they can create/edit lists, and then print directly to 3x5 cards for use with the HipsterPDA.
TiddlyWikiRemote
A version that should run off the server
http://phiffer.org/tiddly/
TiddlyWiki Tutorial
http://www.blogjones.com/TiddlyWikiTutorial.html