Explores the meanings that have been attached to the term "archival" and concludes that librarians participating in the national preservation effort use this term to mean permanent. Permanence is practically defined as storage for upwards of 100 years. Given this definition, the merits of microforms and optical disks as archival storage materials…

Explores the trends and current status of library use of microforms for the preservation and dissemination of research materials. A sampling of topics available on microform is provided, and a directory of the publishers mentioned is included. (CLB)