On April 17th, 2025, Judge Brinkema ruled that Google did act illegally to acquire and maintain monopoly power in online advertising. Now, DOJ and Google lawyers are returning to the courtroom to argue over whether this should lead to a Google breakup by forcing the company to sell its AdX exchange.In the initial trial, the DOJ argued that Google unfairly locked up the market for ad tech tools that publishers and advertisers rely on to monetize their websites and market their goods. Google responded that it created efficient products that work well for customers and said it faced plenty of competition.Read on below for all of the updates and notes from the case.DOJ antitrust chief praises Google ad tech court’s efficiency.We’re at the courthouse where Google is fighting another break up attempt.The US government is taking a second stab at breaking up GoogleDOJ asks court to split up Google’s ad tech empireGoogle is in more danger than ever of being broken upGoogle loses ad tech monopoly caseGoogle and the DOJ make their final arguments in the ad tech monopoly caseGoogle’s empire is under siegeTech critics want a Google exec punished for deleted chatsGoogle is replacing the exec in charge of Search and adsHow Google tried to unravel the DOJ’s ad tech caseGoogle and the DOJ are out of court until November 25th.Google says a closed ad ecosystem isn’t anticompetitive — it’s just saferHow Google made the ad tech industry revolve around itselfTL;DR on the DOJ’s ad tech antitrust trial against Google.Why Google is back in court for another monopoly showdownGoogle employees’ attempts to hide messages from investigators might backfireIn US v. Google, YouTube’s CEO defends the Google wayHow Google got away with charging publishers more than anyone elseHow Google altered a deal with publishers who couldn’t say noGoogle dominates online ads, says antitrust trial witness, but publishers are feeling ‘stuck’Google’s ad server is “slow and clunky” — but virtually everybody uses it.Day 2 of the Google-DOJ antitrust trial begins.Google and the DOJ’s ad tech fight is all about controlGoogle and the Justice Department have made their opening salvos in court.The Google ad tech trial is kicking off this morning.Google and DOJ return for round two of their antitrust fight — this time about ads