In Japan, Northewest Airlines is running a billboard campaign which contains QR codes, small image tags on the billboards which contain an embedded URL. When a camera phone user takes a picture of the board, they are directed to a website that features a game where airline coupons can be won. A company called Semacode makes the technology behind the QR codes. Many phone manufacturers are adopting the technology which may make billboards finally serve a purpose other that simple brand awareness or physical directionals.
