In Virginia courtroom, Google faces new antitrust trial after ruling declaring search engine a monopoly

The Justice Department, joined by a coalition of states, and Google each made opening statements Monday to a federal judge who will decide whether Google holds a monopoly over online advertising technology. The regulators contend that Google built, acquired and maintains a monopoly over the technology that matches online publishers to advertisers. Dominance over the software on both the buy side and the sell side of the transaction enables Google to keep as much as 36 cents on the dollar when it brokers sales between publishers and advertisers, the government...