Michael Josefowicz, aka Dr. Drook, maintains a blog on how the print industry can be transformed by the use of QR Codes - printernet is how he describes it.
He gives a nice shout-out to RI Labs and iCandy:
Imagine you are looking Clickable Print instead of a textbook in K-12. The subject at hand is the Ricoh Innovation Lab. The teacher comes into class and hands you one piece of paper...
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