According to the report, the internet accounted for 23.5 percent of all spend, compared with 18.7 percent in the first half of 2008. Television accounted for 21.9 percent, press display for 18.5 percent and direct mail for 11.5 percent.
The IAB report said the internet had avoided the advertising slump in general media, due to the strong demand for paid-for search on sites such as Google and resilience shown by classified online ads.
The study abreaks down the online display market by industry category, with technology the biggest spender, accounting for 19.1% of the market, followed by telecoms (13.3% rising from 9.7% the previous year) and finance (13.2% up from 11.9%).