For those not in the know, QR codes are a kind of bar code that is readable by a Webcam or mobile phone camera. If you aim your, say, iPhone camera at one and launch the Quickmark iPhone app (to name but one app for that), the smartphone's Web browser will be automatically directed to a Web site. It's a quickie way of sending people to a site without having them laboriously type it in. So, if you're QR-enabled, try this:
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