QR codes as they are most commonly called, were initially created by a subsidiary of Toyota in Japan in 1994, Denso-Wave. The QR codes helped track the status of parts that were being shipped.
These barcodes are big in Japan and South Korea and are just now gaining steam in the United States. However, I believe that marketing campaigns have taken the QR code hostage and are now abusing it. Here are the main qualms about using QR codes in marketing campaigns:
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