[timthelion]

But the really interesting thing is not what Google can do with the ad exchange. But what they can do with that ad buy data in order to reconstruct the sales numbers for a company and unfairly play the derivitives markets around it's earnings call. When I say unfairly, I mean that ONLY google is privy to such knowlege. If there is any reason to think that insider trading is wrong, then Google would be similarly in the wrong here.