U.S. antitrust regulators have approved Google's acquisition of DoubleClick.
The announcement today by the Federal Trade Commission of its approval clears the way for a formidable combination in the growing
online advertising sector.
Despite the FTC's go-ahead, the transaction still faces substantial antitrust scrutiny in Europe.
Google has said that it won't close the deal before it has clearance from European regulators.
The European Commission has set a deadline of April 2 to complete its review.
The 3.1 billion dollar deal will combine Google's leading position in online text ads with DoubleClick's ad-serving tools that help publishers place and track display ads.