John December's short definition: "CMC is human communication via computer. People interested in CMC study a range of phenomena--from the dynamics of group communication in Usenet news articles to how people use hypertext to shape meaning. Not all CMC is Internet-based, of course. People use CMC on private networks."

The United States Distance Learning Association (USDLA) defines distance learning as: "The delivery of education or training through electronically mediated instruction including satellite, video, audio graphic, computer, multimedia technology and other forms of learning at a distance."

Online journals concerning all forms of Distance Learning.