The document discusses the history and evolution of social media from the 1980s to present. It traces the origins of social media to early bulletin board systems and AOL chat rooms, and how these early forms evolved into modern social networking sites like Friendster, MySpace, and Facebook in the 2000s. The document predicts that future social media will involve more collaboration across networks on mobile devices and through common profiles, and will enable activities like global fundraising campaigns and niche blogging to worldwide audiences.