This document discusses the importance of using social media during a crisis for a business. Social media allows a business to [1] control the message during a crisis by rapidly responding. It provides a window into audience reactions that may give early warning of a crisis. Social media can be used to [2] quell brewing discontent and mobilize supporters. When a crisis occurs, businesses should [3] gauge audience opinions on social media, respond rapidly to control the narrative, and mobilize advocates while defusing criticisms.