In the July/August 2010 edition of Digital Publishing Solutions magazine, I found quite a few QR Codes.
There is one directly on the front page — you can see that in the screen-shot below. There are also QR Codes within the magazine that directly people to online subscription forms and buyer’s guides.
Digital Publishing Solutions is one of my favorite magazines when it comes to print-related information. Needless to say, I’m quite happy to see them utilizing QR Codes to help make their printed pieces interactive.