Philatelic Societies
– American Topical Association (ATA)
– American Philatelic Society (APS)
Stamp Dealers Associations
– Canadian Stamp Dealer Association (CSDA)
– American Stamp Dealers Association (ASDA)
Stamp Directories
Stamp Forums
Stamp Newsletters
.
Other Useful Links
– The Universal Postal Union (UPU)
– Library and Archives Canada (Philatelic Collections)
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