This study evaluates the programs which have been undertaken by five school systems (the Albany-Schoharie-Schenectady Board of Cooperative Educational Services (BOCES), the Otsego County BOCES, the Syracuse City School District, the Broome-Tioga BOCES, and the Delaware-Chenango-Madison-Oswego County BOCES) to provide a basis for cooperation and sharing of school library media resources and services. Following a summary of the background of the pilot projects, a description of the sources of data for the School Library Pilot Projects survey is presented. Survey findings are then discussed with respect to four major areas: (1) membership in school library systems; (2) decision making processes in cooperative school library programs; (3) services provided by cooperative school library systems, with specific discussions of human expertise and information services; and (4) the benefits of school library cooperation. Recommendations are then made for the improvement of future attempts at networking among school libraries. A 22-item reference list accompanies the text. Appendices include a copy of the pilot project survey and its covering letter, a copy of the services inventory checklist, and data tables presenting the results of the survey and the services inventory. (JL)