I was told about the Failure Blog today and it's pretty darned good. (It's from the same folks who brought you I Can Has Cheezburger, Engrish, and other great sites.)
Anyway, Failure Blog has lots of really great photos and a number of videos (although many of those tend to get removed for TOS violations--probably copyright issues).
Here are a few examples of failures. (FWIW, there is also a win every once in a while to offset the failures.)