US Department of Justice alleges Google has significant market power in online advertising industry

The US Department of Justice (DOJ) is pursuing a monopoly trial against Google in Virginia, following the company's losses in two major cases that demonstrated its dominant position in the ad tech market. The DOJ alleges that Google broke competition laws by controlling the ad exchange market, which matches buyers and sellers, and by maintaining a monopoly over the technology that matches online publishers to advertisers. Google's parent company, Alphabet, has stated that it will appeal a recent ruling that found Google's monopoly over online searches to be unlawful. The trial will determine whether Google holds a monopoly over online advertising technology, with a federal judge set to make a decision.