Adam's Postcard Page
Collection and exchange of postcards around the world.
Freecard World
Documents the hobby of collecting freecards, a type of postcard that advertises a product that is given away for free in bars, restaurants and movie theaters.
Kim's Postcard Trading Pages
Trading postcards from around the world.
Nancy's Postcard Collection
Postcards from around the world. You'll also be able to visit other sites I've found.
Sp@rkles - Postcard and Penpal Site
A place to meet other postcard collectors and see postcards from around the world.