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 What If Teens Prefer Twitter to Facebook? Now That Grandma Is On Facebook, Where Will Teens Go to Socialize? By Dave Williams, Published on July 10, 2012 17 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.