Google's AI Search Pivot Is Betraying the Open Web — and a $100B+ Ad Market Is Now Up for Grabs

For two decades, Google operated on an implicit bargain with the internet: it organized and indexed the world's content, sent users to millions of independent sites, and collected ad revenue along the way. Publishers, journalists, merchants, and creators got audiences; Google got rich. That deal, argues The Trade Desk co-founder and CEO Jeff Green, has been quietly and then openly canceled — replaced by an AI-driven search experience designed to keep users inside Google's own ecosystem rather than routing them outward.

Google's new AI Mode, powered by Gemini, answers questions directly within the search interface. Users write longer prompts, stay in the session longer, and click through to external sites far less often. Traffic to the publisher ecosystem that fed Google's answers is declining, and some of those businesses are already being sold off or shutting down. Green's core accusation is blunt: Google spent years building its empire by indexing the open internet, and is now co-opting it — summarizing books, articles, and websites without sending users (or revenue) back to the creators.

Google's defense has been to cite volume — billions of clicks still flowing, aggregate numbers relatively stable. Green dismisses this framing entirely, pointing out that every data point claiming the web is healthy originates from the company that made the changes. Meanwhile, the advertising industry has already been quietly repositioning. The Trade Desk, which counts roughly 90% of the Fortune 500 as clients, has shifted its ad-dollar mix dramatically: browser-based website advertising, once the core of its business, now represents only about 10% of spend. The bulk has migrated to streaming TV, music, sports, and other premium content that Google cannot easily measure or control.

Connected TV is the fastest-growing premium advertising screen, and no single company owns access to it. Disney, Netflix, Spotify, Paramount, Peacock, and Fox have all entered the open advertising ecosystem, giving marketers direct pathways to massive audiences that bypass the search box entirely. This structural shift, Green argues, was already underway before Google's AI pivot accelerated it — and it leaves the written-word publishing sector as the primary casualty, since its content is now being ingested and summarized without compensation or traffic referrals.

The most striking claim Green makes is about what's now financially in play. Search advertising represents the single largest concentration of ad spend ever assembled by one company — hundreds of billions of dollars annually. As Google transforms from an open directory into a walled AI garden, Green contends that money is no longer locked up. Advertisers who built strategies around search traffic are reassessing, and the dollars are becoming contestable for the first time. For publishers and platforms outside Google's orbit, the AI pivot that threatens journalism may simultaneously be the event that breaks open the most lucrative market in advertising history.