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 Guinness Bets on Black in New Campaign for Lager Diageo Seeks to Disrupt Notion That Dark Beers Can't Be Refreshing By E.J. Schultz, Published on October 12, 2012 3 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.