Ugly Overload
I'm not sure which came first Ugly Overload or Cute Overload. The Ugly site says...Here at Ugly Overload, we search the Web, seeking out images of the most ugly animals to be found. We avoid the simply tragic, or diseased, or maimed. Rather, these creatures are only as hideous as nature—or their owners—intended.
Be sure to check out the Dog category and look at Sam The World's Ugliest Dog. Beware he is beyond ugly, he is very scary. Straight out of a horror movie. He has his own website at www.samugliestdog.com