The site features photos, data, and values, including newsletter back issues and a section of U.S. booklets.

Offers a vast resource of information for the Israel philatelist.

Philately and postal history of Australia and its states.

For collectors of the stamps and postal history of the smaller Pacific islands.

Studies postage issues commemorating aspects of ancient cultures.

International organization to promote the collecting of postmarks and postal history. Information about the club, this specialty, the annual convention, publications offered, and the Postmark Museum in Bellevue, Ohio.

Collection and study of philatelic items associated with the Russian Empire, the Soviet Union and Republics.

Society dedicated to the study of machine markings on mail.

Specialist society, concerned with delayed and/or damaged mail and interrupted mail services. Samples of covers; information on the society; index of the quarterly journal "La Catastrophe".

Society contact site with details on joining, their journal, and auctions.