PictureBookmarking.com provides a whole variety of funny pictures; cool and weird pictures submitted by its user members.
You can find a huge amount of free picture categories located at your left menu where you can browse for cool, weird or funny pictures. Some of these categories are 3d murals, amazing cars, amazing island formations, art illusions, battlefield robots, beautiful sunrises, beer can sculptures, bra collection, bush, computer part art, cool computer cases, crane accidents, funny animals, creative photography, funny stop light, funny t-shirt, geek, hedge art, high speed photography, humongous fishtank, inflatable Porsche, stupid signs, toy food, floating pool, funny military pictures, worst logos ever and tons more. In addition you can also rate and comment on the pictures by creating your own account which is free of charge. 
