Drupal Association members fund grants that make connections all over the world.
i think it would be helpful to have a ride board module.
it would probably be pretty easy to create.
it would be nice if drupal would email people "matches" too. (like if i was driving to boston and if someone else needed a ride, as soon as one of use submitted the request/announcement then drupal would email each of us and let me know. this way people would not have to be constantly checking back up at the site.)