The document discusses measuring the success of social networking and word-of-mouth marketing. It suggests that while most CEOs believe customers love their products, only a small percentage of customers actually agree. It then presents the Net Promoter Score as a method to track how many customers would recommend a product to friends through asking a single question, in order to better measure word-of-mouth and social networking impact. The Net Promoter Score produces a clear measure of a product's performance based on consumer feedback.