I have been seeing these on everything lately, and I looked it up, and it is the same thing as a bar code, Called QR-Code. You just go to
and you can make your own code for your website, phone, or email.
It seems like their is always something new electronically! If you have a smart phone, you can download the barcode scanner. They are all free.
Just hold your phone over the square, and my website will come up, and you can view it from your phone! cool huh?