Customer service has become one of the most important components for businesses today. The document discusses how customer service needs to be elevated to a strategic priority due to the rise of social media and word-of-mouth. It introduces 10 new rules for customer service, such as having customer service available 24/7, empowering all employees to communicate with customers, and treating influential customers with extra care. Customer service is now critical for competitive advantage and can even generate revenue when done effectively.