The Cincinnati Hackerspace Project has begun!
Go here to join and help out: http://www.hive13.org
There's around a dozen of us now and things are starting to happen.
We had our first meetup to get started on april 25th, 2009 and through subsequent meetings have incorporated. We have also just signed the lease on an awesome 3500 sq ft space.
See Hive13 for more.