The real question is – who hasn’t used a code/tag to make a link between print and online media yet!?
If you haven’t already used QR codes or Microsoft tags – it is never to late to have a look. Check out sites like WhaleSquare or Microsoft Tag to learn more.
Sites driven by these technologies also offer management solutions to organize and sort your rendered codes. With your analytics in place, it can also double as a fresh source to check what browsers are being used for different campaigns.