[kwlug-disc] Free Wiki hosting sites?

[unsolicited]

Been doing some reading on wiki's these days. Coming from a 
non-personal or small / volunteer / organizational perspective.

Seems like twiki, or I guess foswiki now, offers the greatest 
flexibility / functional possibilities.

Have been to http://www.wikimatrix.org/.

I can see that WYSIWYG, page permissions, and editing history are 
potentially important elements. Blogging and forums may also be.

Anyone know of free wiki hosting sites out there?

e.g. For a sample fake example, where might I consider for a free 
http://kwlug.twiki.org type site?