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 Study: How Publishers Are Measuring Native Ads Today OPA Member Sites Play Fast and Loose with Definitions for the Hot Ad Category By Kate Kaye and Kate Kaye, Published on July 25, 2013 4 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.