Quick Response (QR) codes allow users to access web content
directly with a web-enabled phone. Use QR codes where appropriate
in your print materials.
You may have seen these postage stamp-sized black and white, pixilated images: these are QR codes. Smart phones and mobile phones with cameras can read them, directing people instantly from printed materials to a website.
A QR code is a two-dimensional barcode that can store a URL,
text or other data. Advertisers place them on billboards, in
magazines and in many other places where potential customers with
QR-compatible devices such as smart phones and laptop webcams can
scan the code to open a webpage. You can use this technology to
link any printed materials to your department webpage, faculty
profiles, a page giving details on an upcoming event—anywhere
you like. A few examples:
You can resize the image as long as you keep it square, but don't crop away the white border—that's necessary for devices to recognize it as a QR code. It can be printed on white paper or any paper light enough for the black to contrast clearly with the other areas.
You'll notice several other features on the "Details" page for
your shortened, QR-coded URL. Google automatically provides free
basic analytics, showing how many people have loaded your site via
your QR code, when they visited and where they're from, so you can
track usage and evaluate your campaigns.