Abstract
This paper examines the managerial implications of establishing and developing Friends groups as a form of community involvement in the management of urban parks. It argues that there is a need within the literature for more research into the micro-management processes of public participation. The paper presents the findings of a longitudinal grounded theory study into the management of Friends groups as a form of public participation in two English local councils that have substantial experience of operating with such community groups. It introduces the concept of the process of Resource Expansioning and elaborates the various stages and phases of this process. The conclusion is that this form of innovative community involvement is unlikely to be successful without substantial two-way commitment on the part of both the local council and the community, and unless parks officers are able to manage the Friends groups through the clearly demarcated development stages of the Resource Expansioning process.