As in stuff like MarioCommunity or whatever? There... might be some out there but they won't have association with us - PokeCommunity is the only 'Community' forum which I know of. Your best bet us to just google "Mario forum" or whatever you want until you get there.
In any case, this isn't a discussion suited to OC&D so I'll close it here.
super moderator vm // pm unkempt harold