This document provides working definitions in English and in French of the terms which appear in the names of three (Canadian) National Library Advisory Board Committees: (1) the Bibliographic and Communications Network Committee; (2) the Resource Network Committee; and (3) the Committee on Bibliography and Information Services for the Social Sciences and Humanities. Five other terms are also defined, i.e., "computerized library network,""decentralized network,""library network,""open network," and "resource sharing." For each term additional text is presented which amplifies the definition and notes relationships with other terms. Also provided are a list of 10 references and a 7-item bibliography listing more extensive glossaries. (ESR)