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 Google, Amazon, Starbucks Questioned About U.K. Taxes Seeking Revenue, Parliamentary Hearing Probes How U.S. Companies Manage to Pay So Little By Emma Hall, Published on November 14, 2012 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.