Google’s Advertising Rev-Share Deals With Carriers

Well, at least part of the answer appears to be that Google is sharing advertising revenues with carriers that use Android, according to multiple sources who are familiar with the deals.

via Android’s Secret Sauce? Google’s Advertising Rev-Share Deals With Carriers | mocoNews.

This must be why AT&T replaced Google search with Bing on its Android phone and gutted all Google services as well.