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 Wenda Harris Millard Exits Yahoo for Presidency at Martha Stewart Search Vet David Karnstedt Takes Over all U.S. Sales, as Web Giant Restructures By Abbey Klaassen, Published on June 24, 2007 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.