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 Revenue, Staffing, Stocks and Digital Show Growth for Agencies in 2014 Report Hot Spot: Digital, Which in 2013 Accounted for 35% of U.S. Agency Revenue By Bradley Johnson, Published on April 27, 2014 0 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.