If there's anyone in the Southeast Missouri area, a friend just created a website in hopes of giving people a way to get together rides, buy and sell, etc.
http://www.semoriderz.com
It offers something for everyone whether you ride in the dirt or on the street.
He just started it yesterday, so give it a little time for riders to catch on to it.
Sure it's no BansheeHQ, but definately worth a peek if you're from the area.