This document discusses social media marketing. It outlines 4 reasons for using social media marketing, including that there are over 500 million active social media users worldwide and about 50% of people in Singapore use social networks. It also discusses 3 common myths about social media marketing. The document provides 5 things to know about driving viral campaigns on social media and 4 tips for social media marketing, including monitoring campaigns, stalking competitors, comparing results, and changing strategies. Finally, it outlines 4 challenges of social media marketing, such as managing teams, marketing effectively, developing technical aspects, and designing engaging content.