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 After a Long and Conspicuous Absence, Google Will Join the Facebook Exchange DoubleClick Bid Manager is the Latest FBX Partner, and New Competition for the Buying Platforms Already There By Cotton Delo, Published on October 18, 2013 1 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. Become a Member Already a member? Log in.