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 2-D Bar Codes in Glamour's September Issue Will Let You 'Like' Advertisers on Facebook Effort Attempts to Make Codes Friendlier and Find Fans for Brands in the Process By Nat Ives, Published on April 28, 2011 8 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.