We love QR Codes.  And we love iTunes. Even better is when we can combine the two with Free Music Tuesdays.  Follow @icandybot on  Twitter and you'll get the heads up on the latest iCandy cards for Free Music Tuesdays.  Scan them with your iPhone and the appropriate QR Code app and it'll take you straight to the iTunes store where you can download the song for FREE.

Here's a yummy sampler:

We're often asked to describe QR Codes and what they're for.  This scene from CSI describes them beautifully:

 

Michael Josefowicz, aka Dr. Drook, maintains a blog on how the print industry can be transformed by the use of QR Codes - printernet is how he describes it.