This document discusses technologies used for distance education. It explains that distance education technologies can be categorized into telecommunications technologies that connect teachers and learners, and classroom technologies that record and present instructional information. Some examples of distance education technologies mentioned include correspondence studies, prerecorded media, two-way audio, one-way live video, and desktop two-way audio/video. The document also provides a taxonomy of distance education technologies and discusses strategies for online delivery of instruction, including linear programmed instruction.