San Francisco took part in the World Naked Bike Ride this past weekend. This critical mass protesting dependency on fossil fuels/an excuse to see women's breasts seems more popular abroad than over here, but a few local, nude riders managed to make it out. Did you see any nude riders heading up Market Street? Flickr's 3dollarbilly did. Above is some of the (rather grainy) footage he managed to capture of the floppy action going......