The main sections are updated regularly each month, or more often if needed. We are in the process of adding more countries to the worldwide listing (as of 2017 about half the countries are shown), but it is a very slow process. To save you some time we are listing major additions below (starting in January of 2017).
Significant Additions to Worldwide and U.S. misc:
April 2022 - Czechoslovakia
April 2022 - U.S. Junior Duck Stamps (with recent BoB)
Other changes and additions of note:
We have found it's much easier to place and fill orders placed online, even when you want to mail in your payment. If you're concerned about sending any info over the web, you can still use the cart feature to make your order. Simply print your order without clicking on the "check out" button. You will have to manually write in your name, address, and any other pertinent information.