News Corp, Comcast, etc. They don't have the experience selling online display media like Yahoo!

Guess who else does? No one!!!!

So they have an incentive to cooperate.

As I said earlier, if Mayer makes a deal without locking up long-term contracts, then on the surface that seems like a dumb deal.

Given what I have seen of her so far, I would be surprised if she did that. She is doing good so far.