Reviews the growth of library networks and bibliographic utilities, and describes the concept of a national bibliographic network. The impact of microcomputers, the increased computer literacy of librarians, preferences for local autonomy, and the availability of commercial online services on the desire for a national system are discussed. (CLB)

This basic introduction to three types of computer communications that school libraries can use describes bulletin board systems, information utilities, and bibliographic database systems. Examples are given of applications that would be useful for students and teachers. (EM)