Online advertising in the UK is booming. A new report reveals it has outstripped radio, consumer magazines and outdoor in terms of market share.

Figures released by the Internet Advertising Bureau show total UK online adspend in 2005 grew by 65.6% to £1.4 billion ($2.43bn; €2.02bn), lifting the sector's market share to 7.8%.

Internet ad revenues are expected soon to overtake those of national newspapers - £1.9bn in 2005. Even more worrying to print publishers is the 62.4% year-on-year growth of online classified advertising, to £262.2 million.

The IAB's report, produced in association with accountants PricewaterhouseCoopers and the World Advertising Research Center, shows the biggest online spenders were the auto industry and the recruitment sector.

Search marketing via Google and its competitors saw the biggest gains, growing 78.8% last year to £768.4m.

Comments IAB ceo Guy Phillipson: "These figures surpassed all our initial expectations. Our next milestone is £2bn - a real possibility in the next twelve months."

Data sourced from Interactive Advertising Bureau; additional content by WARC staff