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. 

About QR Codes

Hackers use QR codes to take advantage of users by Will Knehr

QR Code Generator for Text Marketing

Demystifying QR Codes: What are they and how do they work - Yanko

Creator of QR Code Reflects 25 Years Later

Qr Codes: How They Work and How to Use Them in Business

QR code - Wikipedia

Why two QR Codes with the same URL can look different?

QR Codes: A Quick Link to Your Giving Page

QR Codes – Easy Digital Downloads Documentation

Actually, QR Codes Never Went Away - The New York Times

Creating Trackable QR Codes - Plugged In: For UMaine Extension

QR Codes

Guidelines For Using QR Codes In Your Business

Scan QR codes on Camera from Google - Camera from Google Help