In a federal antitrust trial, the Department of Justice argues that Google has illegally monopolized the online advertising market by tying its ad exchange, AdX, to its publisher ad server, DoubleClick for Publishers (DFP). The government asks the court to force Google to sell these key assets and to open‑source the auction logic that determines which ads win. Google counters with a proposal for behavioral fixes and emphasizes that sweeping breakup remedies could harm innovation and user privacy. Testimony from publishers underscores the central role of Google’s tools in funding free content on the web.
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