This Deal Helped Turn Google Into an Ad Powerhouse. Is That a Problem ?
The $3.1 billion acquisition of DoubleClick in 2007 was a “game changer.” A growing number of antitrust experts say it’s the sort of deal that should no longer be possible. Google owns the world’s leading search engine, it operates the largest video-hosting service in YouTube, and its popular web browser, email, map and meeting software is used by billions of people. But its financial heft — the source of nearly all its enormous profits — is advertising. And perhaps no day was more pivotal in (...)