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 Stat of the Day: Survey Finds 7.5 Million Pre-teens on Facebook Few Protections Prevent Kids From Signing up With a Fake Birthday By Matt Carmichael, Published on May 10, 2011 5 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.