Media Lens is a British media analysis website established in 2001 by David Cromwell and David Edwards. The site is financed by donations from its supporters. The aim of the website is to scrutinise and question the coverage of the mainstream media of prominent issues and events to draw attention to what they regard as ""the systemic failure of the corporate media to report the world honestly and accurately"".Cromwell and Edwards, who remain the site's editors, write regular 'Media Alerts' concentrating on those mainstream media outlets legally obliged to be impartial (the BBC and Channel 4 News) or usually considered liberal like The Guardian and The Independent. Media Lens frequently disputes the impartiality of the BBC and draws attention to what it sees as the limits within which the liberal press operates.The editors invite their readers to challenge journalists, editors and programme producers directly via email, specifically discouraging abusive contact.Media Lens has gained the approval of John Pilger, who has written about their ""remarkable website"", Other journalists, not necessarily identified with the left, have also made positive comments about the group, but it has come into conflict with others. The Observer's foreign editor Peter Beaumont has claimed the group operated a ""campaign"" against John Sloboda and the Iraq Body Count. George Monbiot has also criticised Media Lens for their apparent defence of Edward S. Herman Graham Murdock and Michael Pickering describe their work as providing ""a riveting expose of the myth of liberal media based on a variety of empirical case studies"".