Simon Heffer, the long standing associate editor of The Telegraph, has moved to the Daily Mail to edit RightMinds, the paper's new comment and blogs website. Simon Heffer outlines his vision for RightMinds and how he plans to make it distinctive in an already crowded market.

The Australian government has decided to investigate the media following suggestions that Rupert Murdoch owns too large a share of the country's press. Emma Alberici, ABC's Europe correspondent, explains that the UK's worries about media plurality are nothing compared to Australia's, where two newspaper owners dominate.

The culture secretary Jeremy Hunt is going to approach Ofcom, the media regulator, to ask for new rules on the way media ownership is measured. The guidelines aim to identify situations where one media group has too much of a share of the UK media. David Elstein explains how media ownership might be measured and why there's a sting in the tail for the BBC.

This week information about the boundary review of MPs' constituencies, which had been given to the mainstream media under embargo, was published on the Guido Fawkes political blog before the embargo was lifted. To discuss whether embargoes still make sense in a digital age, Steve Hewlett is joined by political blogger Paul Staines, of the Guido Fawkes blog, and the Guardian's Michael White.

The producer is Simon Tillotson.