The document discusses the public's trust in non-profit organizations and how that trust is essential for their legitimacy, effectiveness, and financial and non-financial support. It identifies five core exchanges between non-profits and the public: contracting services, soliciting donations, stewarding resources for public benefit, using social capital for public good, and advocacy. Breakdowns in these exchanges can significantly impact and resonate through the organization. Relationship marketing messages can help restore trust after issues, but six factors like the organization's performance, message delivery, market context, reputation, nature of harm, and product/service properties can influence the effectiveness of such messages.