WPP buys up US digital agency

Sir Martin Sorrell's WPP has acquired Schematic, the US digital agency behind the redesign of ITV.com. By Mark Sweney.

MTV plans video games push

12pm: MTV Networks is planning to spend $500m (£250m) on developing video games as part of a two-year worldwide strategy to extend its programming brands beyond the TV screen. By Maria Esposito.

Microsoft buys digital ad firm

Microsoft has completed its biggest-ever deal with the $6.5bn acquisition of digital marketing specialist aQuantive. By Mark Sweney.

Cossette cues up Dare takeover

4pm: Digital creative agency Dare has sold a majority stake to Canadian marketing services company Cossette. By Mark Sweney.

Purnell named culture secretary

2pm update: James Purnell has replaced Tessa Jowell as secretary of state for culture, media and sport. By Chris Tryhorn.

Sony links up with Vaughn and Thykier

5pm: Sony Pictures has signed a deal with the production company run by film producer Matthew Vaughn and former PR man Kris Thykier. By Mark Sweney.