PrefaceAcknowledgmentsSection I: The Dark Side of Personal Social Media UseChapter 1. Social Media and Mental and Physical HealthChapter 2. Narcissism as a Predictor of Self-PresentationChapter 3. Cyberstalking and BullyingChapter 4. Negative Social Comparisons on Social Network SitesChapter 5. Social Media and Relationship DramaSection II: The Dark Side of Professional Social Media UseChapter 6. Social Media Monitoring: A Cautionary ViewChapter 7. Online Firestorms: Collaborative Brand AttacksSection III: The Dark Side of Social Media Use for SocietiesChapter 8. Social Media PrivacyChapter 9. Social Media Lies and RumorsIndex