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 Ushering In a New World of Relationship Media Facebook's Look-Alike Targeting, Now in Beta, Will Change Marketing By Ben Elowitz, Published on March 06, 2013 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.