Google to buy ad network DoubleClick for $3.1 bln

News update on Reuters: Web advertising leader Google Inc. said on Friday it will acquire DoubleClick Inc., a leading online advertising network, for $3.1 billion, consolidating Google’s grip on the Internet ad market.

The deal represents the largest acquisition in Google’s history and comes just six months after Google paid $1.65 billion to acquire video-sharing site YouTube. Terms of the deal call for Google to pay cash to DoubleClick investors. Full story…