Well...my understanding is that there's a pretty good-sized BDSM community in the Tampa/St. Pete area if you would want to start attending munches or anything like that. (I think there may be a group specifically in Clearwater too.)

But if you're wanting to start online only then maybe try a search engine for Tampa + BDSM + chat? I know there used to be a Tampa channel on irc.bondage.net, but no idea if it's still there. Fraid I havent been in a chat room in far too long to be of much help.