I joined JotSpot today. I've been looking for a wiki to use; I put up a couple of pages at a free wiki site that I think is gone now, but they deleted your pages if you didn't update anything in 30 days. Jot still has some kinks to work out, but I like it well enough, and they have a proper pricing structure set up, which is nice. The first page I put up is an Annotated Constitution. If I've gotten it set up properly, it should be freely editable, so feel free to drop by and add your comments!