Needless to say, Google will dominate internet advertising marketing, just as I said before. So it will beat its competitors. The best way to beat a competitor is buying it, I mean make your competitor to be a part of yourself. This is what Google will do.
Google+Amazon Have you think about that Google may buy Amazon? How is Google+Amazon?
Google+Adbrite Adbrite is a big competitor to Google Adsense, this is why I think Google may buy Adbrite.
Google+Kontera Kontera is a new advertising format that Google want to try, so why not buy Kontera instead?
There are still many many Google+, let's predict it, wait and see how Google will behavior.