In the Winter of 1966-67, the National Association of Educational Broadcasters (NAEB) made a survey of 320 educational radio stations requesting detailed information about budgets, types of programing, hours of service, station facilities, and future plans and needs. The data from this survey, based on the questionnaires returned by 135 stations, documents the broad overview of this report. Educational radio's greatest potential service to schools, professional people, commercial stations, the socially disadvantaged, and the community in general has been severely limited by low budgets, small staffs, and a lack of both audience research and program promotion. The National Educational Radio Network (NERN), which distributes tapes of programs to its 150 affiliate stations, offered 1,895 programs (31,371 hours of broadcasting) in 1966, yet the survey determined that the average station operates on an annual budget of less than $25,000. Appendices include statistics gathered in the survey; a sampling of organizations and commercial stations served; a list of educational radio stations; a few in-depth profiles of typical stations; and a report on the third phase of the Educational Communications Systems Study which is being designed to interconnect electronically a group of American colleges and universities. (JY)