Actually these postcards are from Malaysia, Poland, Ireland, and Germany. I also received one recently from Russia, but with my pregnancy brain, it is currently misplaced. If you're interested in what that one looks like, also, you can view it here.
It's been a couple years since I last used Postcrossing, a website that I believe was originally introduced to me by my darling Holly. I was pining for interesting postcards from all over the world again though, and so I reactivated my account and began sending. A couple postcards a month is actually rather cheap as hobbies go, stamps being a dollar and postcards usually being under 50 cents. You simply sign up to send a card, and when your card is received, someone else out there in the world will send one back. And it's wonderful getting small glimpses of elsewhere.