I’ve seen this image on quite a few things and thought maybe it was for a new social site or online retailer. Nope.
“A QR code is a specific matrix barcode”.
“Users with a camera phone equipped with the correct reader application can scan the image of the QR Code to display text, contact information, connect to a wireless network, or open a web page in the phone’s browser. This act of linking from physical world objects is known as a hardlink or physical world hyperlinks.”
Read more HERE.