QR codes — or "Quick Response" codes — are square-shaped barcodes that can be scanned by mobile devices. They are used for a variety of applications, from pulling up a restaurant menu to directing ...

The very mention of QR codes will probably incite groans even in the least cynical of technophiles. What once was a tangible, exciting example of two-worlds colliding, bringing the physical world into ...

Smartphones are everywhere. Mobile payments and location-based services are already drawing people to take out their phones while they’re out and about, and QR codes are another way your business can ...