QR codes (QR for Quick Response) are 2D codes which contain information that can be read by a QR code reader. Readers can be downloaded to mobile devices with a camera and web capabilities. QR codes are often used to link the user to a web address, but can also contain phone numbers to make a phone call or send a SMS text message, or enter up to 250 characters of text on to your mobile device.
A QR code is made by entering the target web address, phone number, or text into a QR Code generator. Our favorite is the Kaywa generator. This site allows the user to easily choose the content type and the desired size of the code. Along with the actual code image, a permalink and HTML code are also generated for each code. The Google URL shortener service also generates a QR code, which can be tracked when the code is created while logged into a Google account.
