This document discusses viral marketing techniques. It defines viral marketing as using existing social networks and technologies to increase brand awareness and achieve other marketing objectives. It provides examples of successful viral marketing campaigns like the Old Spice "Man Your Man Could Smell Like" campaign and the ALS Ice Bucket Challenge. It also discusses methods of viral marketing like social media optimization and television/radio. The document outlines the advantages and disadvantages of viral marketing and provides examples of campaigns that went viral both positively and negatively.