This document discusses the reputation risks that companies face when using social media. It notes that while social media allows unprecedented ability to broadcast messages, it also allows anyone to broadcast their opinions. It identifies key components of reputation like credibility, trust, customer awareness, and governance. It provides examples where companies damaged their reputation through social media missteps like making promises they couldn't keep, paying for fake blog endorsements, tone-deaf tweets, and hijacked conversations. The document concludes that while not using social media is not an option, companies must plan carefully, have policies and training, start small and scale up slowly, and be prepared to respond to mistakes.