After almost two-and-half years, it is with great pleasure that I officially unveil the fourth edition of The Conversation Prism. Viewed and downloaded millions of times over, The Conversation Prism in its various stages has captures snapshot of important moments in the history and evolution of Social Media. For those unfamiliar with The Conversation Prism, it is an evolving infographic that captures the state of social media, organized by how important social networks are used by professional and everyday…