U.S. Stamp Identification – Image or Number : The Swedish Tiger – Roger Kirby
This is a great site that provides tons of information on identifying and valuing US, including BOB, Possessions, etc.
Linn’s Stamp News
Ebay – With CAUTION
Inherited Collections – What to do?
Removing Stamps – Gum or Self-Adhesive
Value: Catalog v. Market
Future of Philately