| Antique Postcard Art by Lisa Begin-Kruysman: Vintage postcards, framed and enhanced by expanding the image of the original card onto the matting with acrylic paint. |
| Antique Postcard Store: Town views and real photo postcards from every continent |
| Back-n-Front Postcards: Old postcards and other ephemera for sale. High resolution copies of ephemera, books, maps available. |
| Bevere Vivis Gallery Postcards: New production postcards from original paintings by British artists. Located in the UK. |
| CardCow Vintage Postcards: Postcards and photos including linen, pre-linen, chrome, real photo and specialty cards from 1900 through 1960's. Includes ecards and desktop wallpaper of the available items. |
| Carlton Antiques: Featuring vintage subject and topographical postcards, many categories. |
| Cassie's Old Stuff: Offers mostly pre-1940s cards including holidays, shortwave, and airships. |
| Cherryland Postcard Company: Auction house for both collectors and dealers or postcards sold on approval. Includes lists. |
| Christine's Postcards: Online postcard marketplace. Offering vintage postcards from various eras. |
| Classic Postcards: Rare cards available individually, and more common ones in lots by theme. |
| Collectable Old Rare Postcards: Specialize in postcards from the 1900s to the 1960s in a wide variety of subjects. Offers an items wanted service. |
| Collections: A direct source for postcards, stamps and telephone cards. Located in the UK. |
| Cosmopolitan Postcard Club: Specializing in Ocean Liner postcards and collectables, menus and passenger lists. |
| Cottage Collectibles And Postcards: Specializing in vintage artist drawn, holiday and French hand tinted postcards as well as antique sheet music. |
| Country Joes Paper And Postcards.Com: Specializes in Northeastern US cards, also offering railroad timetables, road maps, and general ephemera. |
| Days Past: Old postcards, photographs, and postcard collector books. Located in the UK. |
| Doghouse Postcards: Vintage topographical and subject postcards including UK, USA, Europe, art, humor, greetings, plus air, sea and rail transportation cards. |
| Edwardian Delights: Features vintage postcards, prints, and photographs. Specializes in artist postcards. Located in Australia |
| eyeDEAL postcards: Specializes in vintage artist signed, topicals, views, greetings, and animals. |
| GermanPostcards.com: Many categories of vintage postcards from advertising, artist signed, military, town views, to transportation. |
| Half Time Scores: Specializes in cards of Franz Schubert, other composers, music, and some European countries. |
| Harold Jordan: Early to modern nautical postcards including merchant ships, liners, ferries, and paddle steamers. |
| Jerry Burton Vintage Postcards: Cards arranged by topic. Also offers movie and glamour art, and view master reels. |
| Jim Meher's Postal History: Mail approval of vintage postcards by topic. |
| jimwilsonuk: Selection of vintage topographical and various subject postcards viewed by enlarging thumbnails. Located in the United Kingdom. |
| Judnick Postcards: Extensive selection in alphabetical order by place and topic. |
| K's Memories: Wide selection of topical postcards from victorian era to white border and linens. |
| Lynn G's Postcards: Offers cards in a variety of subjects. |
| Marsha's Vintage Victorian Santa Postcards: Christmas themed cards, some artist signed. Includes a product list with a slideshow option. |
| Mary L. Martin LTD Postcard Collectibles: Offers cards on approval and supplies. Includes retail store information and show schedule. |
| Memory Lane Postcards: Cards by topic, approval service, and reference books. |
| Moody's Collectibles: Views of U.S. states, other countries, and an extensive list of other topics. |
| Moonwheel Stamps and Postcards: Includes postcards, stamps, newspapers, and magazines. |
| Morris A. Koshchuk: Offers a range of topical and geographic postcards, stamps, and coins. Located in Canada. |
| myPostcardShop: Features vintage items. Located in Germany, prices in Euros. |
| Nye Creek Deltiology and Ephemera: Old and new cards and other ephemera arranged topically. |
| Old Post Office: Specializes in postcards of Nebraska. |
| Old Postcards: Dealer offers old and vintage photos and postcards from Germany. |
| OlderPostcards.com: Specializes in depictions of the Mineral Wells and Weatherford, Texas area. |
| Oldpostcards.com: Offers cards by category including advertising cards, signed artists, and sports. Includes glossary, history, and chat features. |
| Playle's Auction Mall: Online auction specializing in postcards from various dealers. Also offers recorded music auctions. |
| Post Card Stop: Modern picture postcards from the U.S.A. and other countries. |
| Postcard Canada: Large selection of vintage postcards, stereo cards, sundry and other ephemera. |
| Postcard World: Old postcards for sale to collectors. Wide variety of subjects. Located in the UK. |
| Postcard.Com: Antique, collectible, and modern cards from a number of dealers. Search engine includes all dealers listed on site. |
| Postcards for Sale Network: Free listings of postcards to buy, sell or trade from dealers and collectors all over the world. |
| Postcards Ocean Liners: Specializes in ocean liner postcards. Located in Germany. |
| Postcards Org.UK: Old Postcards of England Ireland Scotland and Wales. Located in UK. |
| Retro-Photo: Extensive listing of vintage cards, also offers an auction catalog. Located in France. |
| Retrospection: Vintage and rare postcards shown with thumbnails. |
| Run-Of-The-Mill Postcard Sales: Specializing in vintage US views, with some foreign views available. |
| SCVIEW & Sons Antique Images: Antique postcards and photographs sold via want lists, approval, or online auctions. Home to South Carolina Postcard Club home page. |
| Shiloh Postcards: Subjects include advertising, musical, occupational, and transportation. Provides a history of postcard collecting. |
| Steve's Postcards: Modern cards featuring ships, trains, hovercraft, or aircraft. Located in the UK. |
| Sylvia Jones: Cards by British manufacturers. Located in the UK. |
| The Dollar Postcard Store: Offers a varied selection of vintage to modern American cards. |
| The Paper Penguin: Specializes in vintage cat, dog, and Santa cards. |
| The Picture Postcard Art Shop: Supplier of framed postcard art from early 1900s to 70s. Delivery available to England, Scotland and Wales only. |
| The Postcard Post: Specializes in airline and airplane themes. |
| The Postcardman: An extensive offering of historical postcards worldwide, located in France. |
| The2Buds Vintage Postcard Shop: Featuring old postcards and archival-quality supplies, such as sleeves and album pages. |
| Vintage Impressions: Dealers in antique postcards, victorian trading cards, first addition hardcover books, vintage paperbacks, and rare pulp magazines. |
| Vintage Paper: Offers rare antique paper ephemera, including postcards, photos, pamphlets, and magazines. Most items are pre-1930. |
| VintagePostcards.com: A full service website offering antique postcards and archival supplies. |
| World War One Postcards: Offers a selection of First World War military postcards including real photo, regiments, patriotic, and silks. Also offers reproductions. Located in the UK. |