To determine the extent of involvement of media specialists in instructional development, a study was organized encompassing: (1) a review of recent studies, (2) a field survey, and (3) a literature review. Studies in library Education, standards and accreditation, and teacher education confirmed the change in media center and media personnel functions, as did the literature review. The field survey of elementary school media centers showed that approximately 75 percent performed instructional development. The study concludes that media centers will be increasingly involved in planning instructional support, participation in instructional design, implementing instruction, evaluation, and staff development. (SK)