This document discusses how social media has revolutionized information systems by allowing IT to directly interact with and reach consumers through new channels. It traces the evolution of social media from early platforms like MySpace and email that have declined, to today's big three of Facebook, Twitter, and others. The document suggests social media will become even more mobile-centric in the future via apps and wireless. It argues IT must adapt to these changes by continuously monitoring trends and being flexible, proactive, and mobile in order to take advantage of opportunities in social media.