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 Crowdsourcing Evangelists to 4A's: 'There's No Way You Can Stop It' Panelists Weigh Pros and Cons of Turning to the Crowd for Brand Ideas By Maureen Morrison, Published on March 08, 2011 10 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.