AAPE - American Association of Philatelic Exhibitors
A worldwide organization of stamp collectors that exhibit their collections competitively and work together for the betterment of philatelic exhibiting and judging standards.

American Philatelic Society
APS, the largesst nonprofit society in the world for stamp collectors.

Bieniecki Int'l, Inc
The Largest and Oldest Firm in North America Specializing In Polish Philatelic Material

Custom Impressions
Stamp Albums

EXPONET - VIRTUAL INTERNATIONAL PHILATELIC EXHIBITION
Czech site dedicated to a virtual philatelic exhibit, showcasing collections and exhibits from around the world.

Groszy Overprints
Site dedicated to the groszy overprints of 1950. It utilizes the exhibit material of Polonus member George Zelwinder to identify and illustrate the different overprints used during the currency devaluation. See George's exhibit in the "Exhibits" section of the Polonus website.

Poland Przedborz Issues
Identification & History

Polish Canadian Coin & Stamp Club - Troyak
Large Toronto, Ontario area Polish stamp and coin collectors' club. Very active membership.

Polish Literary References in English
Site offers English language philatelic titles related to Polish philately. Listed are current and out of print tiles  in CD format. Some titles are also available in  electronic as well as printed versions   

Polish Post
Official web site of the Polish Post

Polonica
Stamps Commemorating Poland Issued by Other Countries

PZF - Polski Zwiazek Filatelistow
Official website of the Polish Philatelic Union

Rossica
Rossica Society is a world-wide society devoted to all aspects of Russian philately, from the pre-stamp days of Imperial Russia to current post-Soviet philately. The purpose of the Society is to unite all philatelist throughout the world with an interest in Russian philately.

Society for Polish Philately in Great Britain


Solidarity Issues
Site is dedicated to the issues of the Polish Solidarity movement.

Sports Philatelists International (SPI)
Sports Philatelists International (SPI) serves the needs of both novice and experienced Olympic and sport stamp collectors throughout the world.

Stamp Domain
Site devoted to many areas of stamp collecting. The Poland page includes many links to historical background and collecting sites.

stamps-pl.com
Internet auction site of Polish phiatelic material. Four to five auctions per year. Archive is excellent as reference material.

Ukrainian Philatelic and Numismatic Society