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 Mexico's Grupo W Will Enter U.S. Hispanic Market Digital Shop Opens Miami Rep Office and Plans Roadshow by Agency Founders Calderon and Valencia By Laurel Wentz, Published on October 14, 2010 2 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.