Just wanted to share something we came across that is really neat for families with kids (or anyone, really)... www.postcrossing.com. It's a worldwide postcard swap. We've been doing it a few months and have gotten postcards from all over the world. It's a great teaching opportunity, plus, it's fun for the kids (and me!) to get mail, and it's a very cheap thrill. We love it.
I know this site and it's really great! It's so much fun to send and get postcards from all different countries. I also to write some for my friends and family at home when I'm on vacation, so why not including other people?
I remember when I was young I loved to get letters and cards. And you can even make your own cards to add a personal touch!