A wiki is a "a collaborative forum where people can share ideas". If you have something to say about multivalued systems; past, present or future feel free to leave your mark. A wiki is a web site maintained for its users, by its users.
Every page on this site CanBeEdited. If you want to experiment, the SandBox is a place where you are encouraged to scribble.
If you login using the http://www.pickwiki.com/cgi-bin/wiki.pl?action=editprefs link, changes you make will be "signed" with your name, and as a free bonus available only to our preferred customers, a personal page will be setup like this one Ian McGowan.
http://c2.com/cgi/wiki?WelcomeVisitors is the original wiki, though there are plenty of others on various subjects around the web.