The stamp, seen here with Siegel Auctions President Scott Trepel, once famously featured in an episode of the Simpsons A rare US postage stamp ... New York The stamp's value skyrocketed almost ...

Many collectors today wonder if postage stamps are good investments. While some rare and historical stamps have increased in value over the years, the market can be very unpredictable. Factors ...

But the USPS is pushing to raise shipping costs on Jan. 19. This article originally appeared here and was republished with permission.

The Year of the Snake stamp is being issued as a Forever stamp in panes of 20, making it not only functional but also a collector's item.