Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.

Creating your own QR code is easier than ever. This step-by-step guide shows beginners how to generate a custom QR code in minutes—no technical skills required.

On the front, Brian Punger’s business card looks like any other. But on the back is a large quick response or QR code that says “Scan me.” People who do just that will upload his contact information ...

From the upcoming generation of “iPad kids” glued to their screens to the ubiquitous but unpopular QR code menu (paywall), critics claim that a proliferation of technology is depriving people of human ...