South Korean movie distributer CJ Entertainment mostly used posters to publicise their movies, however they were ineffective, so their ad agency Cheil decided to try something a little different.
They installed routers behind the posters, turning them into Wi-Fi hotspots. When people logged on, they were taken to a mobile friendly site giving extra content on the film (Events / Ticket Sales / Trailers etc). Wi-Fi poster increased the film’s official website traffic by 28.5%.
Time spent on the websites by Wi-Fi poster visitors was 5 time longer than regular visitors’.