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This round-up of today's main media stories reports on several new developments in the privacy debate, involving the Press Complaints Commission, Twitter and the European Court of Human Rights.

The Press Complaints Commission has upheld a complaint by the Liberal Democrats about articles in the Daily Telegraph, based on interviews with MPs secretly recorded by undercover reporters, . The PCC said the subterfuge was not justified, even though it revealed that the business secretary Vince Cable was opposed to the takeover of BSkyB by Rupert Murdoch's media empire.

The that the Daily Telegraph editor, Tony Gallagher, accepts the ruling but adds in a statement that the PCC adjudication "has alarming implications for the future of investigative journalism".

Senior legal figures and politicians warned on Monday that super-injunctions have been rendered "pointless" by Twitter and other social networking sites . It says Lord Falconer, the former Lord Chancellor, was among those to speak out after an anonymous Twitter user posted a list of celebrities who have obtained injunctions, without any apparent sanction.

the significance of Jemima Khan's tweet where she denied that she had taken out a super-injunction to suppress pictures of herself with Jeremy Clarkson. She unwittingly poured petrol on the flames of the growing row over how Twitter is being used to get round gagging orders being taken out by the rich and famous.

Judges in Strasbourg rules against on ex-motorsports boss Max Mosley's bid to force newspapers to notify people before exposing their private lives, . In 2008, the UK High Court ruled the News of the World invaded his right to privacy by reporting on his sex life. Mr Mosley says financial damages could not restore his reputation and has taken his call for "prior notification" to the European Court of Human Rights. The judgement is a blow to his campaign for tighter privacy laws.

The Middleton family has complained to the Press Complaints Commission after two newspapers published pictures of the Duchess of Cambridge and her sister Pippa in bikinis on a yacht, . The family delivered a shot across the bows to tabloid newspapers, in a bid to prevent further intrusions of their privacy, following the wedding of Kate Middleton and Prince William.

Wins for Ronnie Wood, Frank Skinner and Robbie Savage made it the "year of the lad" at the Sony Radio Academy Awards, . It says wins for Talksport - the UK station of the year - and Â鶹ԼÅÄ Radio 5 live's sporting panel show Fighting Talk reinforced the blokeish feel of the ceremony. Â鶹ԼÅÄ Radio 5 live took home more top prizes than any other station, with six wins including best breakfast show.

The socialite Jemima Khan is pictured on the front pages of the Times and the Daily Express, after a member of the social networking site Twitter wrongly accused her of taking out a super-injunction, as .