A joint study by the IAB and PriceWaterhouseCoopers shows rapid growth in online advertising last year:

Online advertising has grown from being the smallest market sector in 2003 to the third largest in 2007, with a new high of £2,812.6 millions. This represents a 38% year-on-year like-for-like increase, taking the medium to a market share of 15.3% (up from 11.4% in 2006). Internet advertising spend in 2007 exceeded the most generous forecasts and is now larger than press classifieds and regional newspapers.