What's a QR Code? It's a quick response barcode that looks like
a black and white square with smaller squares inside it. You've
probably seen them on ads or maybe even some movie posters.
Here's an example: So What Can You Do With QR Codes? The code
above says, "Can you read me?", but it could have contained a
way to get to a web site, a podcast, blog, picture or any text
you want to use. Each square can contain about 7000 numbers or
4000 characters of information. To read QR code, all you have to
do is (1) load a free QR reader app to your smart phone or iPod
Touch, or QR reader software to your desktop computer; (2) make
sure your reader can "see" the code by taking a photo of it; (3)
and ask your reader to decipher it. Instantly a URL or text will
pop up for you to use. With so many people having smart phones
(Android, Blackberry, iPhone, etc.) and iPod Touches today,
think of how handy these codes could be, for instance, if they
were in your textbooks. All you'd have to do is to take a
picture of the code