Glad to see there is a need and a will to make this happen. So much of a need, it seems two groups started the same thing at around the same time. We have
http://www.wikiscuba.com online right now (have been working at getting it up and running since november). I don't think two completely independent wikis serving the same purpose is the best situation.
World Dive Site Website
Any idea on how to work this out?
Still, I'm glad to see that people are interested. I think either project or, really, both (combined?) have a potential to become something quite useful.