A federal judge ruled that Google illegally monopolized the online advertising market, siding with the Justice Department in a landmark antitrust case. The decision, focusing on Google's ad matching technology, could force Google to divest parts of its ad business, though Google plans to appeal. This is the second major court victory for the government against Google in less than a year, highlighting the tech giant's growing legal challenges related to its market dominance. The ruling impacts publishers and advertisers, potentially reshaping the digital advertising landscape.

Prepared by Christopher Adams and reviewed by editorial team.