I think these sites have content flying up to their servers so quickly that there's no possible way they could ever check copyrights on anything. They hide behind a TOS that on the one hand probably says you can't upload copyrighted material, but then, do nothing to check. Sure, they'll probably move it off if they're caught. But it's kind of like your kid eating a chocolate bar inside Walmart and then discarding the wrapper in the underwear aisle. "I didn't know Johnny did that. Oh Johnny, you're such a bad boy. Here I'll give you the dollar, I'm so sorry."

I'm afraid that service like YouTube and Veoh help foster and extend this "if I can right-click it's mine" mentality.

On the other hand, I love that YouTube and the like have given the common man a voice. I saw a piece about some kid who won an iPod in a paper towel contest. He never got it. After a year of chasing down the paper towel company, he made a video and posted it on YouTube. He got his iPod very shortly after that. I love that kind of wild-west justice. But of course, had the kid been lying, it obviously causes a lot of grief for the wronged.

Cheers,
Michael