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 Why Measurement Is Still Screwing Up the Online Ad Business The Problem Can Be Fixed, but It Will Take Your Help By Sherrill Mane, Published on September 20, 2010 11 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.