On the Merli ride yesterday, we were talking about dirt jumping. Thought I would post this videos from the Mountain Bikers of Santa Cruz Bike Festival last year. This one is from GoPro, featuring a bunch of their sponsored riders jumping the dirt jumps at the Post Office dirt jump track in Aptos, CA, where we had the festival. There was another one from the end of the contest, with all 18 riders riding the track simultaneously in a huge train, where no one fell, but I can't seem to find it right now. 
http://www.youtube.com/watch?v=4aJzYioSDi4
