The document discusses how nonprofits can raise more funds by selling their impact to "impact buyers" rather than relying solely on traditional donors. It argues that nonprofits should measure their outcomes and social impact more systematically in order to market these to potential impact buyers like social investors, beneficiary payers, corporate partners and service providers. The document provides examples of impact buyers and outlines a new approach for nonprofits to understand buyers' needs, quantify their impact, and make the business case for how partnering with the nonprofit can create value for the buyer.