Rideshare board

Hey,

For a while I thought it would be a really nice thing to have a rideshare board for exco classes.  I guess this would make sense to be located within each class, though I could see some scenarios (like a 2 different classes happening at about the same time one of the campuses) where a general board would be good.  This could also just be a header under the forums. 

Whatever, having the ability to request a ride or offer a ride would be both a good social networking tool, would encouarge people not to miss class (cause of responsibility to each other), and would help people without regular transportation.  People could also offer to bus/bike together!

-aaron