The San Francisco Garden Registry is an online map and social networking tool created to connect urban gardeners and to locate current or potential open spaces in the city that are suitable for growing food. By registering these “food production zones” online, a comprehensive land use portrait begins to emerge. Set up by San Francisco art and design collective Futurefarmers, the Garden Registry seeks to quantify the total farmable acreage within the city in order to better support, connect, and cultivate these spaces. To date, some 1,500 acres have been identified.