The document summarizes the use of social media in healthcare. It discusses how social media use has increased across all age groups and how it is now the top online activity. It outlines the evolution of social networking sites and tools like blogs, photos, videos and how they have transformed one-way communication to two-way dialogues. The document then focuses on how these social media tools are being used in healthcare for information sharing, medical education, collaboration, research and professional networking. It provides examples of hospitals, organizations and individuals using social media and the benefits it provides.