The American Philatelic Society is a great place to start when looking to join a philatelic society. I'm happy to answer any questions about the groups below. If you reach out to the groups for membership, be sure to mention me as a reference.
I serve as the editor of the Canal Zone Philatelist. The site provides access to back issue, but the most recent are for members only. A number of other great open access references on the site. Let me know if you would like a sample issue of Canal Zone Philatelist.
I serve as the 2nd Vice President of HPS. Find back issue of our journal Po'oleka on the site along with information on membership.
The essential reference for Hawaii Philately. Catalog of Town and Killer Cancels, Plating Numerals, etc. are all covered.
Society covers all US Possessions, US Territories, US Post Offices Abroad and related areas.
I serve as Secretary/Treasurer of the club. Our focus is the 1st issue of each stamp issuing entity. Collect the world in a structured manner. Let me know if you want a sample issue of First Issues.
COPAPHIL focuses on the stamps and postal history of Colombia and Panama. Check of the many references on the site.