A federal court held Thursday that Google created and sustained an illegal monopoly in key sectors of the online display-ads business, which could lead to the government forcing the tech giant to sell off much of its advertising operations.

Google's advertising business, a key piece of revenue for the tech giant, is an illegal monopoly, US District Judge Leonie Brinkema ruled on Thursday. In the memorandum opinion, the court writes that Google has violated Section 2 of the Sherman Act,

"The U.S. Department of Justice is focused on breaking up all of Google's monopolies and it does not look like they are going to let up. The best course of action would be for Goo