Not really on topic, but stumbled across a few cool sites over the past few days...
http://sbno.illicitohio.com/menu.html
Photo Journal of several abandoned amusement parks mostly in the Ohio area.
http://www.negative-g.com/
Amusement park enthusiast site with info on both current and closed parks.
http://www.forgottenoh.com/
Urban Ex site for abandoned locations in Ohio, several amusement parks and drive ins are featured.
http://chucksphotospot.com/
Mentioned this one before, Urban Ex site many pics in the Chicago/Northern Illinois area.