Section I: Foundations of Social Media Marketing Chapter1: The Horizontal Revolution Chapter 2: Strategic Planning with Social Media Chapter 3: Social Consumers Chapter 4: Digital communities Section II:  The Four Zones of Social Media Chapter 5: Social Communities Chapter 6: Social Publishing Chapter 7: Social Entertainment Chapter 8: Social Commerce Section III: Measuring Users and Social Media Campaigns Chapter 9: Social Media for Consumer Insight Chapter 10: Social Media Metrics