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 A-B InBev Takes to Twitter to Fight Watered-Down Beer Charges Brewer Gets an Assist From 'Old Media' Reporting By E.J. Schultz, Published on March 01, 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.