Another indispensable site owned by the Google borg, though the bulk of its content — cute cats, jiggling body parts and stupid human tricks — is plenty dispensable. But you never know what gems you'll find buried under all those America's Funniest Home Videos rejects. And from such dross is true art made. Witness ThruYOU and In B Flat and consider this: Is YouTube a tomb where the image that Eadweard Muybridge captured in 1877 goes to die? Or the cradle of an entirely new visual language?