The document discusses the SMB Trust Index, which measures how likely small and medium sized businesses are to recommend various brands based on ratings from over 6,000 SMB owners. It is updated quarterly and provides insights into different industries. The index shows that access to customer support is important for websites, while education builds trust for email marketing. Developing trust through social marketing and inbound marketing can reduce costs of customer acquisition compared to traditional outbound methods by encouraging positive word-of-mouth.