I noticed that my home state, ohio wasn't listed as one of the topics! And since I figured I can't be the ONLY ONE in the whole state, I figured I'd start the discussion off. Of course, I can only speak to the Cleveland area / northeastern Ohio, but here goes...
For restaurant listings, there's the North East Ohio Celiac Support Group's page -
http://www.geocities.com/clevelandceliac/
Also, I'm working on a cleveland area resource so check out my blog for tips on places to eat in NE Ohio -
http://glutenfreeincleveland.blogspot.com