Integrating machine-readable data files and microcomputer software (combined as MRDF) into traditional library and information services by incorporating a MARC format for them into the bibliographic networks will increase access to those materials. Standards for their bibliographic control have been developed and progress is being made in their…

Reviews the history of Telidon, the Canadian videotex system; describes Telidon's alphageometric method of graphic-information encoding; discusses some experimental applications of the Telidon system; and describes attempts at developing a North American standard for videotex systems. Five figures are included. (JL)

Examines three topics related to electronic publishing and distribution: the national context, including NREN (National Education and Research Network); issues of market readiness, funding, delivery standards, access software, intellectual property concerns, and pricing and licensing models that must be resolved; and descriptions of seven services…