This guide is designed to help philanthropists evaluate whether they want to include support for social entrepreneurs in their giving or investment programs, and how to begin doing so. For philanthropists accustomed to more traditional grantees, yet interested in backing these groundbreaking leaders, funding social entrepreneurs can feel like entering uncharted territory. Donors might find themselves intrigued by the potential for change, and yet, at the same time, unsure of what to expect in a field where the unexpected is the norm.