A QR code (short for Quick Response) is a specific matrix barcode (or two-dimensional code), readable by dedicated QR barcode readers and camera phones. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL or other data.
http://en.wikipedia.org/wiki/QR_code
http://www.qrinkle.com/
http://goo.gl/
http://r20.rs6.net/tn.jsp?llr=lgkxgtbab&et=1106584988522&s=6570&e=001x4WpKVoIrGnfLd9yneahKEE3mjYjdFZIwTcIHFgRPYs_6bCdRAFiR8PUCmm9QmxGRLWBe3jjEC_VfcvnieKl3NxtV9EMNTwG_870hXx2cybexx0G0I6AVH_VGw4f4ZGz5GzXUlQg_dohlELdczK8KAJ6Hk6-jYppREdiikufjSq6TuCe_Cf48Fy7KalBZuRSozJRgFCPJ5lc-sKO-Cs60_8ARJUtaOnMd5opAhZmewAAvhIHYkZ78SvEZNIRRlfR_PHt-7nQpLY=
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