The basic history of the field was written by Saettler. The evolution of American educational technology. A review of the research. Association for Educational Communications and Technology. Learning with media.
Most educational technologists carry out one or a few of the functions performed in the field.
For example, some design instruction, some produce instructional materials, and others manage instructional computing services or learning resources collections. Association for Educational Communications and Technology. Until recently, most educational technologists were employed in schools and colleges as directors of resource centers and developers of curriculum materials. Many are still employed in such positions, but increasing numbers are being employed by training agencies in business, industry, government, the military, and the health professions. Colleges and universities employ individuals who are involved in instructional improvement programs that use a variety of technologies.