Site of the EFÜR in Sweden with sections on forgeries, expert marks, and literature.

International society devoted to the philately of France and the French Community.

Group focuses on study of postal material from mountainous Asian nations.

Promotes the collecting and study of the postage stamps, and postal history of the Ottoman Empire and successor states. Includes information about membership, publications and resource articles.

Worldwide group focuses on philately related to past and present states and colonies in Africa. Includes membership details, an application form and a list of available publications.

International group focuses on the collection and study of envelopes, cards, and other items.

Information about postage, mail, postal issues, philately, hobbies, stamp hobbies in UK.

Devoted to the collection, study and exhibition of the issues and postal history of the United Nations.

Official site features society news, resources and membership information.

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