Flag over Porch Stamps - A detailed study of the "Flag Over Porch" issued by the United States. - http://www.ro-klinger.de/flagoverporch/
Canadian Stamp News - Serving stamp collectors with updated stamp news. - http://www.canadianstampnews.com
Philately of Saint Pierre et Miquelon - Official site - Stamps, FDC, Maximum Cards of the archipelago of Saint Pierre and Miquelon. History is illustrated by stamps, find portraits of artists and engravers. - http://www.spmtimbres.com
Canada Stamp Catalog - 1851-2001 - Canada Stamp Catalog - provides documentary information on nearly 2,400 stamps released by Canada and British North America between 1851-2001 with individual descriptions. - http://www.collectionscanada.ca/archivianet/020117_e.html