Practical examples of QR code usage:
http://www.socialmediaexaminer.com/how-qr-codes-can-grow-your-business
For more technical information on what exactly QR codes can represent:
http://code.google.com/p/zxing/wiki/BarcodeContents
Revel Digital is a web based platform for digital signage. Check our blog for new features or any service related announcements.
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