Various links to sites we like.
Please not that being listed here does not imply any endorsement or affiliation.
Chartered in 1979, the International Federation of Postcard Dealers is primarily an organization of postcard dealers, but also promotes the interests of postcard collectors as well. Its purpose is to encourage professionalism, increase confidence, strengthen ethics and promote the postcard hobby worldwide.
Large site full of information and resources.
The Metropolitan Postcard Club of New York City carries on the traditions of the old Metropolitan Post Card Collectors, the oldest continuously run postcard club in the United States since 1946. Not only facilitating the exchange of postcards between collectors and dealers, the club is dedicated to the free exchange of information and ideas to further the understanding of Deltiology.
I built this thing? Want one?
A venerable auction and sales business with a lovely site.
A brief history of the picture postcard from the NY State Library.
Fairly active postcard collecting forum.