Describes computerized conferencing comparing selected characteristics to those of other group communication media. Results of field trials and laboratory experiments are offered to demonstrate positive comparisons to audio and visual conferences. (JMF)

Describes the University of Wisconsin Extension Program's Educational Telephone Network (ETN) which provides more than 150 credit and noncredit program series annually. Points out that ETN has proved to be an effective, low-cost means of meeting the increasing demand for continuing education. (JMF)

Compares three models for satellite systems in terms of design and costs in relation to other communications systems to show the most efficient and economical forms. (JMF)

Reviews developments of experimental satellite programs and their relationship to those operational satellite systems in existence or planned for use by private communications corporations and government agencies. Emphasizes issues related to the planning and availability of satellite systems. (JMF)

Discusses and evaluates two types of "telephone tutorials" used by the United Kingdom's Open University. Surveys conclude that teaching methods must be adapted to suit the structure of the medium, individual roles in the interaction may change, and previous preparation for the discussion topic is important for the system's success. (JMF)