Amazon nibbles away at Google's search advertising dollars

Amazon is the only real threat to Google’s search dominance in the U.S., according to a new report from eMarketer, which forecasts that the e-commerce giant will generate more than $7 billion in search advertising revenue this year.Today, eMarketer releases its search ad report which shows Amazon grabbing more of the market, even though it is still way behind Google on the search front. Google will notch more than $40 billion in search advertising revenue in the U.S. this ye