What kind of stamps do I need to send a postcard to Postsecret from Toronto?

I'm from Toronto, Canada and I want to send a postcard to Postsecret.

This is their address:



PostSecret

13345 Copper Ridge Road

Germantown, Maryland

20874



How many stamps do I need %26amp; what kind of stamps do I need? How much does it cost?What kind of stamps do I need to send a postcard to Postsecret from Toronto?
Here's a chart with both US to Canada and Canada to US rates. I hope it helps you out. If not just check with your local post office.



http://www.qsl.net/w2vtm/postage.html