This digest discusses teleconferencing--defined as electronic communication between two or more people at a distance--in terms of three major types: audio, video, and computer. Reasons offered for using teleconferencing include the extension of budget dollars and of educational opportunities, accommodation of a wide variety of classes, and provision of a flexible format for meetings. Audio conference options identified include dedicated conference networks; dial-up networks; "meet-me" conferencing, in which each participant calls the conferencing center from any convenient location; and audiographic teleconferencing, which involves transmission of print and graphic information over telephone lines to complement basic communication with visual information. Video teleconferencing options described include freeze-frame or slow scan television; compressed video systems; and full motion video systems, which use wideband channels to send video, voice, and data. Computer conferencing is also briefly explained. Nine additional readings are listed. (LMM)