This document discusses the evolution of marketing and technology over time. It outlines the shift from older marketing methods like direct mail and telephone to newer digital methods like websites, search, social media, and mobile technologies. It also describes the progression from Web 1.0 to 2.0 to 3.0, noting changes like increased connectivity, interactivity, collaboration and user-generated content. Finally, it provides definitions of key terms like social media and discusses how marketing is becoming more conversational and focused on interaction versus one-way communication.