You might find the Florida Gardening Forum interesting:
http://forums.gardenweb.com/forums/flgard/
There are many knowledgeable posters here as well as new-to-Florida gardeners like many of us.
You don't have to register. You can just lurk and read. However, if you wish to post, then you do have to register. I've never had any problems as a result of registering with the site and I've learned a lot.
June