Great presentation on bad uses of QR Codes. I have frequently received emails from companies with them included. There are company websites out there with them on the landing page. I have also seen them so dense that I can’t imagine too many smartphones being able to read them. Whenever one of our customers wants to put a QR code on a marketing piece, we have a long discussion with them about making sure that the code is readable, trackable and that it makes sense on the piece.