As part of Harvard University's Program on Information Technologies and Public Policy, a research project attempted to understand the forces shaping the content and flow of instruction through traditional textbooks, educational television, and in-house generated materials. Work to date has emphasized assembling and interpreting descriptive materials, identifying significant factors, and focusing questions. Separate, investigations of textbook publishing and of educational broadcasting have been partially completed. A comparison of the results of the two investigations is planned. This report contains a review of the research question, a summary of work to date, outlines of the investigations into textbook publishing and educational broadcasting, and a paper on industrial education and computer-assisted instruction. Additional appendixes provide tabular data on expenditures for textbooks and public television. (EMH)