National stamp collecting organization's website provides information about membership, expertizing services, sales circuits, and local clubs.

American Stamp Dealers Association ...

The Association of British Philatelic Societies (ABPS) is the National Organisation catering for the needs of collectors through the Federations and local societies ...

Ten Good Reasons ... why collectors of Great Britain stamps and covers should join the GBPS. You will be a member of the foremost Society for the ...

The Texas Stamp Dealers Association is a group of professional stamp dealers who conduct stamp shows throughout Texas. See our Stamp Show Schedule for ...

Organization of stamp sellers based in Florida lists member dealers and promotes ethical behavior in the philatelic industry.