Internet auction leader eBay has signed a deal with the U.S. Postal Service to give co-branded shipping materials to shared customers. Under the deal, announced Friday at eBay's customer conference in ...

While investment quality stamps have a steady history of appreciation, their value at any one point in time is fairly well known. It is therefore important for someone buying stamps as an investment ...

An ultra-rare stamp depicting an inverted Jenny airplane has been sold for a record $2 million at a New York auction, making it the most expensive U.S. stamp ever sold. A 76-year-old New York man ...

History, intrigue and a misprint combine so that a single stamp has sold for $2 million at auction. What is it? Well, at the basic level, it is a U.S. postage stamp from 1918. But this stamp's got ...