The Mid Michigan club is pretty active still, from what I understand, and thats a bit closer (I think Jim is in Ann Arbor or close thereby), but they had their own forum (
www.captivereefs.com) thats no longer a site. Not sure if they went to facebook or not. I think the people putting together the Brownstown swap were attempting to get something together as well, at least there was a lot of chatter on FB about it at one point (Michigan Reefers Classified) and there are lots of people on the East side that are active there. Might be worth a look.
Personally, Ive meet a lot of great people on the west side, and met up with many more at the various swaps throughout the years. Thats always a pretty convenient way of getting together.