Creating QR Codes can help direct people to web sites and links. An extension found in the Chrome Apps Store is a great feature to add to your list of current extensions. Once the extension is installed, you simply right click on any web page, image, text, or link that you want to generate a code for and you are on your way to quickly creating a QR Code.
Check out this link to install the QR CODE GENERATOR extension. You can also view the extension link and lots of other useful extensions and apps at Potts' Favorite Chrome Extensions & Apps.