Art & Architecture thesaurus
http://www.getty.edu/research/tools/vocabulary/aat/index.html

ICONCLASS Icon Classification System
http://www.iconclass.nl/

Museum Computer Network
http://www.mcn.edu/

Primus prosjektet
http://www.norskfolke.museum.no/prosjekt/primus/

School of Library, Archival and Information Studies
The University of British Columbia
Database Vocabularies & Indexing
http://www.slais.ubc.ca/courses/arstlibr512/00-01-wt2/database1.htm

The UK registrars group
http://www.ukrg.org/news.html

Winregimus
http://www.hd.uib.no/musved/winregim.html