Please find below some links that I find useful and informative for stamp collecting.  If you have a link you would like to see listed please email me with the details.

Clubs and Societies
Stamporama
Excellent on-line club with Auctions for members
the Machin Forum
Online club for Machin collectors
Royal Philatelic Society of Canada
Home of the RPSC
American Philatelic Society
Home Of the APS
British North American Philatelic Society
Specializing in British North America
American Topical Association
A great resource for topical collectors.
The Virtual Stamp Club
Great Message Board and informative news
Ships on Stamps Unit
Unit of the American Topical Association
International Society of World Wide Stamp Collectors
Society dedicated to the collection of world wide stamps
Art on Stamps
On-line club for art on stamps

General Reference and Other Collectors Sites
phabphilately.blogspot.com — My Philatelic Blog
Stampboards.com — www.stampboards.com - World's No#1 place to discuss STAMP COLLECTING and PHILATELY!
Taiwansese Postage Stamps — Site on Taiwanese postage stamps and postal history
Theo's Philately — Great Blog site by a well written philatelist
Football (Soccer) Philately Site — Great Site on the worlds game.
Stamps Myanmar — Website featuring stamps from Myanmar and others
Stamp2.com — Reference site with articles
Adminware — Information on Canadian Definitives and UK Machins
Ask Phil — Question and Answer Site great reference
PhilaGuide — On-line repository of links and reference material
Japhila — E-Zine on philately
Exponet — On-line virtual stamp exhibition
Stamp Paradise Philatelic directory — Stamp Link Mega Site
Stamp-Links.com — The best stamp collecting websites on the internet
Her Majesty Queen Elizabeth II — A Philatelic Exhibit of Alyssah Xeniah C. Alcala of the Philippines
Start Local Guide to Stamp Collecting— Start Local The Ultimate Guide to Stamp Collecting

Dealers/Auction Sites
E-bay — The Mother of all Auction Sites
Stamp Wants — Stamp specific Auction Site
Steven Haddocks World Wide Stamps — Great Dealer with excellent deals
Collectors Supply House — Supplies and packets available here
Unitrade Associates — Supplies and packets
Vista Stamps — Approvals, supplies and country clubs.
Arpin Philately — Approvals, Supplies and direct purchases
www.Philatino.com — Multi Auction website