Today we look at the principal market figures that were published during the course of the year.

DOOH is becoming increasingly visible – at least in the USA. According to a survey by GfK MRI, 29.6% of adults in the USA – 67.4 million individuals – had seen a place-based video ad during the last 30 days prior to the study.

An Arbitron survey also found that 70% of 12-year-olds and over – 181 million individuals – had seen a digital signage screen in the month preceding the study, and over half (52% or 135 million individuals) had seen one in the week before.

These are the kind of figures that should have an impact on ad-spend in the media: in the USA, the digital signage advertising market grew by 14.8% during 2010, to more than $2 Billion, according to PQ Media.

In Europe, Screen Digest predicts that ad-spend on DOOH will reach €500 Million by 2014, representing 9.4% of the total investment in OOH. The UK, which nearly reached €100 Million of advertising revenues last year, according to Kinetic, will continue to dominate the market (€160 M of revenues expected), ahead of Germany and France (each between €60M and €80M).

Even though these results are encouraging, the fact remains that DOOH is still an infant, representing less than 1% of advertising expenditure in digital media throughout the world, according to Razorfish.