The document traces the evolution of media over the past 90 years, showing how new forms of media have continually been created, with each new form building on previous forms. 90 years ago radio was introduced, 60 years ago TV was added, 30 years ago the internet began allowing digital banners and text, 10 years ago various digital formats like video advertising emerged, and today social media and mobile ads are prevalent, with tomorrow promising newer combinations of existing media like digital radio and reusable paper with broadcast and display formats.