What Are QR Codes?

Even before millions watched a QR code bounce across the screen during the Super Bowl, the plucky code scratched back into our lives. 

QR Code, 2D, matrix & scanning

How to create a QR code + best practices

Mobile learning #9: A Dummies Guide to QR codes

QR Code Definition

What is a QR code? What are QR codes used for? - Digital Citizen

QR code images

How QR codes hide privacy, security risks

QR code - Wikipedia

Will my QR Codes expire?

How do QR codes work—and what makes them dangerous

What is a QR Code®?

The Art of QR Codes - The Social Media Hat

5 Things to Consider Before Scanning Your Next QR Code

What is a QR Code? - Transmit Security