Learn about the project by Girl Scout Cadet Troop 250. See which other troops participated and check out the postcards.

Find, sell or trade collectible postcards at this online auction house. Read the ads and find contact information, or post a message.

Online dealer specializes in postcards from North Wales, North West England, Social History, and Photographs. See photos and contact information.

Look through the listing of postcards available to buy, sell, or trade. See pictures and price, and find ordering or selling information.

After perusing the personal collection, find items that are available for trade. Place an ad on the bulletin board, and join the mailing list.

English - German postcard collector offers this list of collectors wanting to exchange with people in other countries.

Online classroom uses postcards as an example of different cultures and places. Send in holiday postcards from around the world.