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 Turns the 'Like' Into Its Newest Ad Say Something About a Brand? It Could End Up as an Ad in Your Friends' Feeds By Irina Slutsky, Published on January 25, 2011 40 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.