Library of Congress MARC Code Lists:
- MARC Code List for COUNTRIES
- MARC Code List for GEOGRAPHIC AREAS
- MARC Code List for LANGUAGES
- MARC Code List for ORGANIZATIONS
- MARC Code List for RELATORS, SOURCES, DESCRIPTION CONVENTIONS
Dewey Decimal Classification Web Site
Includes DDC 21 summaries, DDC 22 summaries
Library of Congress Rule Interpretations
Cumulative list of currently valid LCRI to the Anglo-American Cataloguing Rules, second edition, 2002 revision.
A list of cataloguing tools, sorted by source and format.
RDA (Resource Description and Access) Resources
Automatic metadata generator based on metadata standards