Organizations:
- American Philatelic Society – www.stamps.org
- American Topical Stamps Association – http://americantopicalassn.org
- Young Philatelic Leaders Fellowship (YPLF) – http://www.stampfellowship.org/
- Youth Stamp Collectors of America – http://stamps.org/YSCA
- American Stamp Dealers Association – www.americanstampdealer.com
- American Numismatic Association (ANA) – http://www.money.org

Publications:
- Linn’s Stamp News – www.linns.com
- Coin World – www.coinworld.com

Shows:
- APS AmeriStamp Expo – www.stamps.org/AmeriStamp-Expo-ASE
- WESTPEX – www.westpex.com
- SESCAL Stamp Show – www.sescal.org
- Quality Stamp Shows – www.stampshowsteve.com
- Long Beach Coin Shows – www.longbeachexpo.com

Vendors & Services:
- United States Postal Service – www.usps.com
- US Stamp Album Pages – www.stampalbums.com
- Subway Stamp Company – www.subwaystamp.com
- Professional Stamp Experts – www.gradingmatters.com.

Members Only:
[email protected]