Antique Jewelry & Decorative Arts
History of Costume and Dress
More History of Costume & Period Dress
Kyoto Costume Institute Archives
Victoria & Albert Museum - London, Jewellery Gallery
Diamonds & Gems
The American Musuem of Natural History - A great deal of information about diamonds.
J.M. Cohen, Rare Books - Many jewelry related titles
Education & Societies
Antique Jewelry & Art & Conference or "Jewelry Camp"
American Society of Jewelry Historians
Gemological Institute of America
History of England & France
International Society of Appraisers