UK online ad spend rose by 10% Y-o-Y in the first half of 2010

"Online advertising expenditure continues to rise in the UK, with consumer goods brands and retailers among the key drivers of this trend.
Estimates from industry body the IAB, compiled in partnership with PricewaterhouseCoopers and Warc, show internet ad revenues increased 10%, to £1.97bn ($3.1bn; €2.3bn), during the first half of 2010.
This took the medium to a record 24.3% market share, and also meant the net out-performed the advertising sector as a whole, which registered a 6.3% uptick to £8.1bn.
Paid search maintained a dominant position, receiving 59.9% of web advertising sales, improving 8.9% compared with H1 2009.
Display sales, on £381m, jumped 6.4%, delivering around 19% of online adspend, largely flat year-on-year.
Standard formats such as banners contributed £272m of this figure, up from £238m on an annual basis, and pre- and post-roll video returns also rose 82%, reaching £20.7m.
Meanwhile, social networking platforms like Facebook and MySpace claimed 13% of internet display advertising takings."
Source:  Data from IAB & PwC, reported by Warc, 6th October 2010