[Discover] Postcrossing - Postcards Traveling The World http://www.postcrossing.com/ (fun community social travel)
 [Discover] Lucy Jane Batchelor http://www.lucyjanebatchelor.co.uk/ (ecodesign postcards)
 [Discover] Postage Stamps and Stationery of Russia and USSR http://www.stamprussia.com/ (art stamps russia history)
 [Discover] Unusual Cards http://www.unusualcards.com/index.html (shopping illustration retro weird)
 [Discover] BUSTcards http://www.bust.com/cards/index.html (ecards postcards)
 [Discover] GeoGreeting! http://www.geogreeting.com/ (google mashup map googlemaps)
 [Discover] leifpeng's photosets on Flickr http://www.flickr.com/photos/leifpeng/sets/ (design retro illustration vintage)
 [Discover] Penny Postcards http://www.pennypostcards.com/ (images email free postcards)
 [Discover] Eatpoo Tarot Card Project http://tarot.eatpoo.com/ (postcards imagebank design community)
 [Discover] The Trade Card Place - Articles About Trade Cards http://www.tradecards.com/articles/articles.html (history illustration design art)
 [Discover] Antique Postcard Collection http://www.charlesellerstudios.com/fun/antique_cards.html (postcards imagebank)
 [Discover] Old Tokyo - Vintage Tinted Images of the Japanese Capital City http://www.oldtokyo.com/ (history photography japan photos)
 [Discover] MOO | We love to print http://www.moo.com/ (design photography businesscards business)
 [Discover] www.POSTCARDMAN.net - Old Antique Vintage Postcard Postcards http://www.postcardman.net/index.html (postcards history images photography)
 [Discover] Psychedelic Art Gallery Postcards http://www.psychedelic-art.net/modules/gallery/gallery_cards_send.php?photo_name=http://www.psychede ... (imagebank postcards)
 [Discover] Paleo-Future: Postcards Show the Year 2000 (circa 1900) http://paleo-future.blogspot.com/2007/04/postcards-showing-year-2000-circa-1900.html (art future retro history)