A "gatekeeper" is an individual within a communication system who, through a process of selection, restricts the flow of information to the receivers. To investigate certain demographic characteristics and opinions which influence county supervisors (gatekeepers) in the selection of publications for dissemination to vocational agriculture teachers, numerous publications were mailed to Maryland county supervisors. The extent of dissemination of these publications was checked through the vocational agriculture teachers, who also provided opinions regarding what types of publications they needed. Further, the supervisors were interviewed by telephone to obtain the demographic data and their opinions regarding several factors of the publications. Some conclusions reached as result of the study were: (1) Supervisors were aware of teacher needs but did not disseminate publications to meet these needs, and (2) Supervisors base their opinions of publications in part on the general content of publications. (Author/JS)