I found a great list of Social Networking sites that are specifically designed to communicate with a location or region. The publisher is in my LinkedIN group. Please take a look at this- http://bdnooz.com/lbsn-location-based-social-networking-links/ I will be adding new entries to it as soon as I get a chance to check it all out. I hope some of them help you.
We will be using a lot of these services to gain unfair advantages in 2009!
Please keep me posted.
Thanks,
Kathy