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 Why Coke Went Dark on Twitter for Nearly Two Hours During the Super Bowl Twitter Publishing Cap Limits Brands and Individuals to 1,000 Tweets Per Day By Cotton Delo, Published on February 15, 2013 9 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. Register Now Already a member? Log in.