The Digital Signage ExpertFound this very cool website called Technovelgy which looks at the implementation of things in real life which have first been mention in science-fiction.
Some of the more well-known texts which get a mention are 1984, Star Wars and The Invisible Man.
They have an article taking about digital signage and how digital billboards are about to become a reality.
The idea was first mooted in The Subliminal Man which was written by J.G.Ballard.
The article mentions that Google is getting on board. If that is the case, digital signage is going to take off in a huge way.
Just wonder if if Tom Cruise and Minority Report is going to be referenced every time this is brought up.