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 Top 10 Twitter Trends: Gaga, Ron Burgundy, Some Woman Named Pattie HootSuite's Twitter Week in Review, Mar. 29-Apr. 5 By Simon Dumenco, Published on April 06, 2012 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.