i don't often post links to other photographers' work here for, well, obvious reasons. But if you like bikes, enjoy looking at pictures of bikes and have a spare ten minutes, there are a couple of places on the web worth visiting at the moment.
Foreign Policy's online magazine has a photo story tying together bicycle use around the world, from the Tour de France to transporting bananas in Burundi. And the Boston Globe's Big Picture feature on the Tour has some stunning images from the toughest race on earth (TM).
It's enough to make you want to go out for a ride.