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 Zynga Gamers Could Soon Be Cashing In Proposed Real-Money Option Has Annual-Revenue Potential of $5 Billion, but Creates Extensive Legal Issues to Maneuver By Rich Thomaselli, Published on April 23, 2012 2 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.