This paper deals with the varied sites and teachers that can and should be used in educating residents and medical students in ambulatory care. A basic premise is that sites other than academic medical centers and teachers other than physician faculty members should be among those used. The paper describes how institutions have used non-traditional sites and teachers. Then, after emphasizing the need to choose settings according to curricular objectives, it discusses teaching sites, both hospital-based (general medical, specialty, and multidisciplinary clinics) and community-based (home care settings, rural clinics, nursing homes, and community clinics). Next it describes the array of current and potential teachers, which includes generalist and specialist physician faculty members, community physicians, residents, and allied personnel such as pharmacists and nurses. The paper also discusses forces resisting and supporting the use of new sites and teachers. It ends with general recommendations.