I posted an article about QR Codes a few months ago. QR Codes are two-dimensional barcodes that can contain a great deal of information in a relatively small area. They are heavily used in Japan, and are slowly starting to gain traction in other parts of the world. One of the best uses of QR codes in my mind involves the inclusion of QR code hyperlinks in printed media. That way a user could be reading a poster or a paper version of an article and still be able to navigate hyperlinks using their phone. Typically this is accomplished using a QR code reader on a cellular phone, which causes the ...