My name is Dave and I am building a wiki with my partner called Sarasota Wiki We are hosting at ServerFly. After checking out as many wikis as possible, we chose to go with Tikiwiki. Tikiwiki is so far out in front of anything else, its a fairly easy decision to make, if you have the technical where-with-all to install and manage your own dedicated Web server.
Anyway, I thought I should at least introduce myself here and talk about how I found my way to TikiWiki. Keep your eyes/browsers peeled for Sarasota Wiki.