We've recently integrated them as a part of our Real Estate signage division. Real Estate agents are using them on signage and other print materials that way people can click and see a video or a website that directly relates to that listing.
I find them useful if you're trying to lead someone back to a website that has a lengthy URL or if you want them to have the ability to purchase, search or view something instantly.
Just back from the Advances in Printing Leaner and Cleaner Manufacturing event in Cambridge.
Very interesting day lots of information about ink jet printing. The first person I spoke to gave him my Repro Arts b/card with our QR code emblazen on it. Does any one use this he asked as he reached for his phone. Wow as he scand it how quick is that as he viewed our web site.
Everybody is using them now Clive as you can see from this advert example above. The use of QR codes on business cards is brilliant too. What a great way of making business cards interactive. If you go to 'articles' over on www.graphicdisplayworld.com there is a great presentation on QR media in the latest article which is an overview ofthe recent Florida Signage and Graphics Summit where you will find a link.