Here's the only online info I could find:
http://www.chadduck.com/ymarines/othermc/
There are also Marine Corps in the Phillipines, Edcuador (recently participated in joint exercises with our Marines), San Marino, and other countries I can't regurgitate from memory.
I'd recommend finding a book in the library about special forces around the world. I have one by Argo, I believe, that covers most of them.