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 Carbonated Soft Drinks Face Tough Battle to Maintain Share While Still Big Business, Category's Volume Decline Triples From '05 By Kate Macarthur, Published on March 08, 2007 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.