If you want someone to access your information on the web without having to type in a long URL, QR codes rock. Through the years, people have tried using them with varying degrees of success. There are two applications that I find very effective. Car dealers can use them on vehicles so that buyers can get more detailed information on the vehicle and real estate agencies can use them on property signs for the exact same reason.
Do you have applications where you have found QR Codes helpful?