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 Facebook Is on the Hunt for More Tentpole Deals with Marketers Social Net Needs to Close Ad Revenue Gap with Google to Prove It's Ready for Big IPO By Cotton Delo, Published on October 10, 2011 2 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.