One of the latest and most useful forms of marketing called Quick Response codes, or QR codes, is living up to its name, however, and getting just that -- a very quick response.
With their reliance on bar codes, QR codes do not represent a new technology by any means.
But they're on the 21st-century marketing hot list for reshaping the one-way bar-code system to make it more interactive.
The code consists of black modules arranged in a square pattern on a white background.
The medium was developed to allow content to be decoded at high speed.
But after I tried a few and started to see how they worked and what businesses used them for, I began to understand not only the value in bar-code marketing but also the huge potential for businesses, large and small.