This document discusses viral content and how brands can capitalize on it. It defines viral content as any media that suddenly becomes an online sensation. It explains that content which evokes strong emotions like anger, happiness or surprise has more potential to spread widely. The document contrasts organic viral content, which spreads naturally, with manufactured content created by brands, and discusses the risks and rewards of each approach. It provides examples of both organic and hijacked hashtag campaigns to promote content or products. The key lessons are to capitalize on existing trends, create dialogue genuinely, and that viral content cannot be forced.