For those who follow the social media space and are mobile nuts, QR codes add a cool aspect to both online and offline marketing programs.

In plain English, QR codes are basically bar codes that look like a printer spit ink into a square. Like bar codes, each QR code is unique.

When a mobile user takes a picture of the QR code (with the help of any number of mobile apps) he or she will be directed to something -- a website, app download, coupon, etc.

The biggest issue with QR codes is that your run of the mill consumer doesn't know what the heck they are. The adoption just isn't there yet.