NEW YORK (CNNMoney.com) -- Search engine leader Google is buying privately held DoubleClick, a top digital marketing services firm, for $3.1 billion in cash, the companies said Friday afternoon.

Google paid $3.1 billion in hard cash for DoubleClick in a deal that could transform online advertising. At the very least, Google gets an entry into the display ad market--one of its weaknesses ...

A single Google check for $3.1 billion made out to DoubleClick! Google’s world wide mastery of SPIN continues, big time, in its determined takeover of the World Wide Web: Google: $3.1 billion ca ...

Image Timothy Armstrong championed the acquisition of DoubleClick when he was a Google executive.Credit...Gabby Jones for The New York Times The Justice Department is expected to file an antitrust ...

Antitrust experts predict that Google Inc.'s purchase of advertising company DoubleClick for $3.1 billion will be approved by U.S. regulators despite vehement opposition from competitors Microsoft ...

The DOJ and 17 states allege Google used acquisitions to dominate the $300 billion adtech market. A pitch deck outlines how the DoubleClick acquisition played a key role in Google's ad growth.

In 2011, this Indian-American executive received a staggering $100 million to remain with Google, later becoming YouTube's ...

Now, Google is about to face a similar antitrust case, this time related to its purchase of DoubleClick. In 2008, Google successfully acquired DoubleClick, an ad sales-focused company. The ...

A federal judge ruled Thursday that Google holds an illegal monopoly in two online advertising markets — the latest in a series of blows by Washington against the trillion-dollar tech giant.

Alphabet Inc. (GOOGL), the parent company of Google, owns several other companies in addition to the search engine giant. Seven major companies owned by Alphabet are YouTube, Waze, DoubleClick ...