The QR code is really catching on. If you have heard of QR, short for Quick Response, it's currently being discussed as the next big thing. It's a simple bar code that allows smartphones to scan them and quickly share content online. If there is a way to integrate it into your business practices and marketing, you should definitely give it a go.
Checking out quick response codes is quite easy to do, even for free. Kaywa and ZXing were recommended by Entrepreneur.com. Here are a few ways you might be able to use them at your business, as suggested by Fast Company: