MagnaGlobal, a media researcher, predicts that worldwide spending on out-of-home advertising will expand by 8.3% in 2011 to about $26.4 billion, faster growth than that seen for other non-internet forms of advertising (see chart). Spending on digital billboards and posters is expected to double in the next five years, to $5.2 billion.
Then there is “gladvertising” and “sadvertising”, a rather sinister-sounding idea in which billboards with embedded cameras, linked to face-tracking software, detect the mood of each consumer who passes by, and change the advertising on display to suit it.
Read more at The Economist
