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You’re reading a magazine and you see an ad you like. In the corner is a small box of squares – you take out your phone, take a picture of it and you’re instantly on the company’s website, finding out exactly what you need to know.

Then, you’re walking down the street and in the corner of a billboard is another small box of squares – click with your phone and you’re surfing the info instantly.

How is this possible? See for yourself at http://www.youtube.com/watch?v=jQkUnXq3oZQ&feature=related or http://en.wikipedia.org/wiki/QR_Code