I think that I would use them for local business advertising as long as people used QR codes with their smart phone in my area.
Is anyone using QR codes to promote their business/sites? I know there are multiple places to create free QR codes on the web, and there are some services that charge (and offer more features). Any opinions on any of that? Feedback? Suggestions? Anything?
Life is meant to be experienced, not observed. ~ Me