Just a couple quick thoughts --
You probably already know about and have visited FreedomList, a forum for the discussion of free/cheap ISPs and related topics? But just in case, it's here:
http://www.freedomlist.com/forum/(I'm thinking since ISPs often offer hosting as well, you might get a lead on what you're looking for, there)
Also, I'm assuming the MSN Groups/Yahoo type of "websites"/groups/communities are inappropriate for your needs? Or like geocities, tripod, etc.?
Wish I could be more help.
Good luck with your search
