US accuses Google of ad monopoly
Federal prosecutors are contending that Google maintains an illegal monopoly on the advertising technology market, in a blockbuster antitrust trial now underway in Virginia. In opening arguments, a Justice Department lawyer said Google's 2008 acquisition of the ad-serving company DoubleClick helped it claim an 87% share of the market and control all sides, from the selling of online ad space by publishers to the bidding by advertisers, along with the exchange in the middle. Google argues that it doesn't abuse that control and earned its dominance by offering products that benefit businesses and content creators.
- Google already lost a major antitrust case last month when a judge ruled it had an illegal monopoly in online search. This one is expected to last at least four weeks.
- At stake is a potential partial breakup of the company, with regulators seeking a divestiture of Google Ad Manager, where publishers sell inventory and brands manage campaigns.