Over the past few years there has been a love/hate relationship with QR codes. Nowadays, the campaigns have gotten more sophisticated and companies are constantly placing mobile bar codes on ...

Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.

Over the past year, QR codes have gained momentum. Mobile bar codes are constantly being seen on billboards, bus shelters and product packaging to not only drive user engagement, but sales as well.