Association Française des Amateurs d'Horlogerie
Association Nationale des Collectionneurs et Amateurs d'Horlogerie Ancienne et d'Art
Associazione Italiana Cultori di Orologeria Antica
Boerhaave Museum
British Horological Institute
Clocks Magazine
Clocktime
Clock museums on The Clock Register
Clock parts for Dutch clocks
Deutsche Gesellschaft für Chronometrie e.V.
Deutsches Uhrenmuseum
Find clockmakers
Information about Comtoise clocks
Le Musée international d'horlogerie
Mark Headrick's Horology page
Museum of the History of Science
National Museum from Musical Clock to Street Organ
Patek Philippe Museum
Research on British and Irish clock- and watchmakers
The Antiquarian Horological Society
The British Museum
The British Watch & Clock Makers Guild
The Clock Register
The Horological Foundation
The National Association of Watch & Clock Collectors, Inc.
The National Maritime Museum
The Worshipful Company of Clockmakers
Turret clock care
West Dean College - Clock Restoration and Conservation Course