The document provides an overview of social media and its uses. It discusses that social media has overtaken porn as the top online activity, with 58 million users checking profiles several times daily. The 45-55 age group is growing fast in social media usage. It then summarizes some key statistics on time spent on social media versus other online activities. Finally, it outlines some of the major social media platforms like Facebook, Twitter, LinkedIn and discusses their basic features and business uses.