QR codes are a quick and easy way to share websites with students and other educators.  They are a great way to share websites with younger kids or any student who is likely to mis-type a long and complicated website address! Most cellphone cameras have the ability to read QR codes and the next update of the Chrome browser (OS89) is supposed to have a built-in QR code reader in the Chromebook camera.  Chrome currently has an Experiment that will allow you to right-click on any website and automatically generate a QR code for that page that you can use in emails, documents, and even your Google Classroom.