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 Salesforce, Others in Race to Create One-Stop Shop for Marketing Data ExactTarget Buy Escalates Battle for Control of the Marketing Stack By Travis May, Published on June 18, 2013 1 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.