The successful implementation of site-based management (SBM) requires time and changes in the role expectations among all members of the school community. Because needs and achievement levels differ among schools, there is no one best way to implement SBM. Schools are better off developing their own self-starting, working models. This paper defines SBM and offers a rationale for embracing change. It also offers a historical overview of the development of SBM, discusses current research findings about SBM, reviews successful models of SBM and the roles and responsibilities of participants, describes pitfalls, and provides overview of legislative action and legal considerations. (LMI)