As a seller, I don't mind mailing internationally, Canada included. Lately, though, I have included shipping in the cost of an item; then, I did state USA only. I believe I will add a note in my ads that I will sell to anyone; I know international buyers realize they have to pay more. It is more of a hassle to mail to everyone, but I'm always glad to make my customers happy. I've sold on eBay for years; never had any problems (I believe I've sold more fabric to Japan than even USA). And I've been lucky here; no problems either. But I did wonder why I had only USA buyers here (until this week); we have to let them know we will ship to them, right?