Google's DoubleClick revamp wants ads to say it in pictures

DOKUMENT - Having conquered the web's text-based ad market, Google is setting its sights on display ads - a market dominated by rival Yahoo!. The search giant on Thursday took the wraps off a revamped DoubleClick Ad Exchange, a public exchange that allows publishers to offer excess ad inventory they can't sell to advertisers. Google said the exchange will meld the DoubleClick's ad exchange with Sharing is sexy