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 Google Makes Push For Brand Dollars With Advertiser-Driven Private Exchanges Aggregating Top Tier Programmatic Inventory For Big Budget Brand Advertisers By Alex Kantrowitz, Published on February 07, 2014 6 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.