The internet now accounts for 23.5% of UK ad spend, compared to 21.9% for TV

"The UK has become the first major economy where advertisers spend more on internet advertising than on television advertising, with a record £1.75bn online spend in the first six months of the year.
The milestone marks a watershed for the embattled TV industry, the leading ad medium in the UK for almost half a century. It has taken the internet little more than a decade to become the biggest advertising sector in the UK.
UK advertisers spent £1.75bn on internet advertising in the six months to the end of June, a 4.6% year-on-year increase, according to a report by the Internet Advertising Bureau and PricewaterhouseCoopers. To put this in perspective, in 1998, when the IAB first measured internet advertising, just £19.4m was spent online.
The internet now accounts for 23.5% of all advertising money spent in the UK, while TV ad spend accounts for 21.9% of marketing budgets."
Source: Figures from the IAB / PwC for January - June 2009, reported by The Guardian, 30th September 2009