A review of library technological development and card catalog innovations of the past century and a half precedes a discussion of online public access catalog development. Design requirements and purpose of the online catalog, access techniques and provisions, costs, and future integration are highlighted. Twenty-two references are listed. (EJS)

Reviews the questions and issues which must be addressed as libraries enter an age in which the development of online catalogs for library users is becoming more feasible. Viability of online catalogs, current activities in catalog development, variables involved in catalog design, and the potential of online systems are discussed. (JL)