I believe I am one of the few Realtors in my market that uses QR codes. I use them in advertising my web site, but also use them for each listing I have. I create a QR code for the virtual tour for each listing and apply it to the yard sign. Buyers can then drive by, snap the code & they have the virtual tour for that house on their phone. I have noticed that activity is increasing in the number of views.My sellers love the idea, and I think it's much better than a flyer box full of soggy flyers.