24hour museum

http://www.24hourmuseum.org.uk/

American Association of Museums, USA 

http://www.aam-us.org/

Archive & Museum Informatics, USA

http://www.archimuse.com/

Art Museum Network

http://www.amn.org/

Association for Heritage Interpretation

http://www.heritageinterpretation.org.uk/index.htm

Campaign for Learning in Museums

http://www.clmg.org.uk/

Canadian Heritage Information Network

http://www.chin.gc.ca/

European Route of Industrial Heritage
http://www.erih.net/

French Ministry of Culture
http://www.culture.gouv.fr/culture/bdd/bdd3g.htm

 GEM (Group for Education in Museums), UK

http://www.gem.org.uk/

ICOM-CIDOC  

http://www.cidoc.icom.org/

International Council of Archives

http://www.ica.org

The International Comitee for  the
Conservation of the Industrial Heritage

http://www.mnactec.com/TICCIH/org.html

International Council of Museums, ICOM

http://www.icom.org/

Museum Documentation Association, UK

http://www.mda.org.uk/

Museums, Libraries and Archives Council, UK  

http://www.mla.gov.uk/

WWW Virtual Library of Museums

http://www.icom.org/vlmp/