A set of rules that describe the content that is contained in library catalog records.

A concept of an online library suggested by Vannevar Bush in 1945.

, by William Arms, (c) 2000 M.I.T. Press. [ Contents

Secondary information services that provide searching of scholarly and scientific information, in particular of individual journal articles.

Control of access to material in digital libraries. Sometimes called terms and conditions or rights management.

A digital library of the journals and conference proceedings published by the Association for Computing Machinery.

A digital library of geospatial information, based at the University of California, Santa Barbara.

The Library of Congress's digital library of materials converted from its primary source materials related to American history.

A small computer program that can be transmitted from a server to a client computer and executed on the client.

Collections with related systems and services, organized to emphasize the long-term preservation of information.