The United States Postal Service
Postage rates, zip codes, policies, stamp news and everything you need to know about the USPS.

USPS Postal Bulletin
The official source of information about new USPS stamp issues. Check the "Philately" section for stamp news and a listing of current pictorial postmarks.

United Nations Postal Administration
Find information about the latest UN stamps. Currently available stamps can be purchased directly from UNPA.

The American First Day Cover Society
The premier organization devoted to the advancement of First Day Cover collecting.

American Philatelic Society
Serving Stamp Collectors Since 1886

The American Topical Association
Information for all topical enthusiasts

Society of Israel Philatelists

Vatican Philatelic Society

American Air Mail Society

Scandinavian Collectors Club

United States Stamp Society

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