QR Codes: should I be using them?

If you believe, like I do, that the Internet is getting more and more mobile, I guess you should be using QR codes, as they are extremely convenient to avoid typing on your mobile mini keyboard.

QR code for http://eduardovalencia.com

QR code for eduardovalencia.com

[BEGIN WIKIPEDIA QUOTE] A QR Code is a matrix code (or two-dimensional bar code) created by Japanese corporation Denso-Wave in 1994. The “QR” is derived from “Quick Response”, as the creator intended the code to allow its contents to be decoded at high speed.

QR Codes are common in Japan, where they are currently the most popular type of two dimensional codes. Moreover, most current Japanese mobile phones can read this code with their camera. [END WIKIPEDIA QUOTE]

URLs, phone numbers, SMS messages, tickets and more

Traditional bar codes can “store” up to 20 digits, while the QR Codes can hold up to 7089 figures in a very small space.

The most common use of them nowadays is to enconde a  URL. Frame the QR code with a suitable application in your mobile phone, click and your phone will connect to the Internet and display the corresponding site.

We can also encode a phone number, a v-card (electronic business card) or a text message, that can be sent via SMS to the recipient encoded in the QR Code

Some have begun to actually begin to use the QR code as a system of ticketing  for theatres, concerts, museums and even boarding passes for flights.

QR readers for all mobile phones

I use an application called “Bar Code Scanner” for Android. And i-nigma for iphone.
Ther are QR reader available for the iPhone, Windows Mobile, Nokia, BlackBerry, and other app-based phones with a camera built in.
On http://www.mobile-barcodes.com/qr-code-software/  there ia a comprehensive list of QR readers.

To generate QR codes

There are dozens of free QR code generators available. I would recommend http://qrcode.kaywa.com/. Otherwise, just google “QR code generator”
As for WordPress plugins I have installed Qurify (see it on the right column). It displays  whatever QR Code you want and (optional) let your visitors qurify their own QR Codes, directly on your blog!

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