A while back, someone posted a list of top *medically accurate* web sites. I'm sure some of them have forums. (at least I think it was here).
Aha! Just found it.http://caphis.mlanet.org/consumer/index.html
But, to answer your question, I don't know of any off the top of my head.
Cordially, Jeri . . . 100% all natural asset allocation. (no supernatural methods used)