You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Search Giant Google Makes Its Case for Display Advertising Looks to Lure Additional Advertiser Dollars to Its Expansive Content Network By Michael Learmonth, Published on April 20, 2009 4 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Register Now Already a member? Log in.