Links:

Bookbinding and Conservation

Guild of Bookworkers
Foundation of the American Institute for Conservation (FAIC)

Book Dealers & Bookfairs

Antiquarian Booksellers’ Association of America
International League of Antiquarian Booksellers
International Book Collectors Association List of A+ Book Dealers
Calendar of Bookfairs

Online Bookselling Services

AddALL
Abebooks.com
alibris.com
Bookfinder.com

Caring for Your Book Collection

Library of Congress: Care, Handling and Storage of Books
American Institute for Conservation: Caring for Your Books