UK online advertising spending surged 66% to $2.39 bln in 2005, giving it a 7.8% market share — ahead of radio, consumer magazines and outdoor ads. Internet ad spending had a market share of 4.9% in 2004. Growth was driven in part by classified ads, which grew by 62.4% to 262.2 mln pounds, the Internet Advertising Bureau said. Print classifieds fell 5.1% in 2005. search marketing through search engines saw the biggest gains, growing 78.8% to 768.4 mln pounds in 2005. Recruitment was the biggest online ad category with 22% of the market, followed by finance (17.4%), automotive (12.4%) and entertainment and media (10.2%).