postcrossingThe free site Postcrossing lets you send and recieve postcards from random people all over the world.

Sign up to the site and send out 5 postcards to other members around the world. Once those members register they’ve recieved your postcards you are eligible to start getting postcards from 5 other random ‘postcarders’ across the globe.

Postcrossing itself is free, although you’ll need to pick up stamps and postcards on your own. The more you send (with a max of 5 out at a time) the more postcards you’ll receive. You can write about yourself, city, or anything else you like on each postcard and maintain a collection at home, on Flickr, or create a customized travel map for your blog or website.

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I can see Postcrossing as a great game for parents to get their children on to and encourage their budding travelers and prevent the death of the postcard if you still send them.