QR Codes - Have you used them yet?

Have you heard about QR codes, or even noticed them recently?  Lots of magazines, books, newspapers and websites are starting to include these codes on them – this is what they look like.  They’re like abnormally large barcodes!

To make use of them all you have to do is get a QR scanner  app on your phone ( I have QR scanner on my iphone) and then it allows you to scan these large bar codes – have a go and see where they take you.
There are some great used for them, including:
On leaflets/postcards/business cards – the code will direct people to your website
In emails as special offers – when you scan the code it takes you through to a special offer not available to anyone else.
Treasure hunt – take people to multiple sites (your own or other peoples) and then eventually to where you
I’m thinking of using them for a competition on my own website – it will be interesting to see if they’re just a fad or if the general public pick up on this.  If you have a QR code linking through to your site get in touch and I’ll publish it!
If you want to create your own code click here http://qrcodify.com/