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 What Marketers Can Learn from the Tomato Scare Whole Foods, McDonald's Should Be Buying Keywords, Posting to Blogs By Abbey Klaassen, Published on June 10, 2008 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.