Association of British Philatelic Societies (www.abps.org.uk)
Austrian Philatelic Society (www.austrianphilately.com)
Belgian Philatelic Study Circle (www.belgianphilatelicstudycircle.org.uk)
British West Indies Study Circle (www.bwisc.org)
Canadian Philatelic Society (www.canadianpsgb.org.uk)
Czechoslovak Philatelic Society of Great Britain (www.cpsgb.org.uk)
France & Colonies Philatelic Society (UK) (www.fcps.org.uk)
Germany & Colonies Study Circle (www.germanphilately.org)
Hungarian Philatelic Society of Great Britain (www.hpsgb.com)
Isle of Man Stamps (www.iompost.com)
Italy & Colonies Study Circle (http://www.icsc-uk.com)
Midland Philatelic Federation (https://sites.google.com/site/midlandphilatelicfederation/)
The Royal Philatelic Society (www.rpsl.org.uk)
The Revenue Society (www.revenuesociety.org.uk)
Stamp Active – Stamps for young collectors (www.stampactive.co.uk)
Stamp Collector Magazine (www.warnersgroup.co.uk)
Stanley Gibbons (www.stanleygibbons.com)
Thames Valley Philatelic Association (www.tvpf.org.uk)
UPA Stamp Auctions (www.upastampauctions.co.uk)