In this must-hear episode of Expert Opinion, Andrea Fabbri, Director of Strategy at BrandingBusiness talks with Mark Schaefer, author of Social Media Explained: Untangling the World’s Most Misunderstood Business Trend and the best-selling book on Twitter, The Tao of Twitter. Mark shares insightful facts about the direction and evolution of social media, as well as an overview on the five core concepts of social media.