Spend reached £490.8 million in the first half of 2005, an increase of 62.3 per cent on the same period last year. The growth saw market share increase to 5.8 per cent, compared with a 5.1 per cent share for outdoor advertising across the same period.
Display advertising on the internet rose 67.7 per cent to hit £162.1 million, one-third of total spend. The paid-for search category also grew dramatically, up 72 per cent to £197.3 million. "Other display", which includes video streaming and microsites, also saw strong growth, with the sector around ten times the size it was last year.
The growth has been driven by the take-up in broadband, according to Guy Phillipson, the chief executive of the IAB. More than eight million homes now have broadband internet connections, outstripping those with dial-up.
"These results have surpassed our expectations. At the end of 2004, the IAB predicted online would overtake outdoor by mid-2006 and we've beaten this target," Phillipson commented.