The purpose of this study is to review the findings of the various groups and individuals who have delineated the role of the state educational agency in the provision of school library media services, to study a selected group of state agencies to determine the manner by which they provide service, to seek the opinions of authorities serving in the capacity of state educational media supervisors regarding their role, and to synthesize the information into a model for the consideration of state educational agencies in planning for improved information service. Nine states selected on the basis of geographic location, history of previous support for library media services, and provision of state aid participated in the study--Alabama, Florida, Iowa, Maine, Maryland, New York, North Carolina, Oklahoma, and Wisconsin. Data presented and discussed for each state include the legal basis for library media programs and services, organizational structure of the library media unit within the state education agency, professional personnel, and functions and activities of the units. Organizational charts portray two alternative placements for a library media unit within the state department of education proposed by the model, as well as the sections comprising the unit, and job descriptions for media personnel are provided. A 35-item reference list is included, as well as three appendices: a suggested model for state legislation, organizational charts for the states studied, and a bibliography of selected state publications. (Author/BBM)