From the Young Adult Library Services Association website: "The Michael L. Printz Award is an award for a book that exemplifies literary excellence in young adult literature. It is named for a Topeka, Kansas school librarian who was a long-time active member of the Young Adult Library Services Association. The award is sponsored by Booklist, a publication of the American Library Association."
And this year two Australian books were named as 2006 Honor Books: Black Juice by Margo Lanagan, and I am the Messenger by Marcus Zusak.
[Thanks to Margo for the link from her Among Amid Awhile weblog.]