This document discusses measuring the social impact of corporate social responsibility activities. It outlines the benefits of learning to measure social impact, which include getting a clear picture of an organization's work, understanding its impact on society, and identifying its standing in the industry. The document then describes three main steps to measuring social impact: defining the social value proposition, quantifying social value, and monetizing social value. Finally, it discusses several approaches that can be used to estimate social impact, such as cost-effectiveness analysis, cost-benefit analysis, and social return on investment.