I know it's difficult to get participation because there aren't enough members to have a competition for voting. I would do more of a feature like what your thinking of doing. There was something that a member on 8thcivic.com did that was very interesting. Maybe you could do something similar too. Check it out.

http://www.8thcivic.com/forums/insid...red-rides.html

He did me a while back.