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 Twitter Week in Review: HootSuite's Top 10 Trends, Mar. 22-29 New Weekly Chart: The Topics, Brands and Memes Dominating Twitter Chatter By Simon Dumenco, Published on March 30, 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.