For Those of you unfamiliar with QR codes are like UPC codes, but on steroids. Google has been experimenting with QR codes by linking to Google Maps listings. People also go as far as posting QR codes on their YELP listing. Even Facebook has jumped on the bandwagon and is now testing QR codes for their profiles. Reading this TC article about Google’s QR codes this a great incentive to get those mobile savvy recipients to sign-up to your email marketing list, smart phones users love a new gadgets