A discussion between the leaders of four teacher centers is presented. Participants came from Philadelphia, Chicago, Detroit, and Burlington (Wisconsin). The Detroit and Philadelphia centers are school-district supported, serving teachers in multiracial, low-income schools throughout the cities. The Chicago and Burlington centers are independent, founded and supported by teachers with financial help from local foundations and businesses. Both depend extensively on volunteers as staff and serve teachers in nonpublic as well as public schools. The conversation between these different center leaders suggests the differences in facilities, formats, scope, and programming, and the similarity of purposes they share. (JD)