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 Paid Tweets Just as Healthy as Organic Word-of-Mouth? Sponsored Posts Still Seen as a Scourge, but Earned Media Gets a Boost From Paid Marketing Push By Abbey Klaassen, Published on September 14, 2009 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.