[Discover] Postcrossing - Postcards Traveling The World http://www.postcrossing.com/ (postcards community paper fun)
 [Discover] Postage Stamps and Stationery of Russia and USSR http://www.stamprussia.com/ (art history design vintage)
 [Discover] Unusual Cards http://www.unusualcards.com/index.html (art shopping design images)
 [Discover] BUSTcards http://www.bust.com/cards/index.html (ecards postcards)
 [Discover] geoGreeting! http://www.geogreeting.com/ (google maps fun greeting)
 [Discover] leifpeng's photosets on Flickr http://www.flickr.com/photos/leifpeng/sets/ (illustration design retro vintage)
 [Discover] Penny Postcards http://www.pennypostcards.com/ (vintage images postcards illustration)
 [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 art design illustration)
 [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/ (photos history japan tokyo)
 [Discover] moo | we love to print http://www.moo.com/ (design businesscards printing photography)
 [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 (history retro future futurism)
 [Discover] Postcards of the Seasons and Holidays by Tsutaya Kiichi http://www.janmstore.com/70177.html (drawing illustration postcards japan)