Several techniques for delineating the economic value of open space, suggest both strengths and limitations. This policy focus report analyzes the effectiveness, practicality, and fairness of numerous tools used to finance open space conservation, such as impact fees, dedications of land, transfer fees, conservation easements, and floodplain zoning. With this information, planners, developers, government officials, land trust representatives, homeowners, and citizens can think more strategically about preservation opportunities in their communities.