PANews reported on April 17 that a U.S. federal judge said on Thursday that Google (GOOG.O) illegally monopolized two markets for online advertising technology, another blow to the tech giant in an antitrust case filed in the United States. The ruling may give prosecutors reason to demand a breakup of Google's advertising products. The U.S. Department of Justice said Google should at least sell its Ad Manager products, which include the company's publisher ad server business and ad exchange platform. Google may now face two different U.S. courts ordering it to sell assets or change its business practices. The U.S. Department of Justice requires Google to sell its Chrome browser and take other steps to end its dominance in online search, and a judge in Washington will hold a trial on this request next week.