This document outlines 11 risks of online marketing: 1) trademark and copyright issues, 2) brand hijacking through phishing sites, viruses, or fake materials, 3) lack of control over corporate content on social media, 4) complying with policies of social media outlets regarding spam, terms, and promotion, 5) complying with local laws and regulations, 6) negative influences from mass media, 7) uncontrolled negative or spam user generated content, 8) privacy issues around user data use, 9) spamming concerns, and 10) employer/employee issues from wasted work time or social media use. It also mentions the challenge of accurately measuring return on investment.