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 Facebook's Changes Mean For Your Business With Groups, Mark Zuckerberg Gives the Clearest Indication of Where Facebook Is Headed By Michael Lazerow, Published on October 07, 2010 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.