His resignation comes ahead of a story due to be published in tomorrow's Sunday Mirror concerning his private life.
Sky's Political Correspondent Anushka Asthana says the details of the story have not been made public, but it is believed to involve social media.
http://news.sky.com/story/1343384/co...ewmark-resigns
Ch4HDNews says he has only been in his job a few weeks
Its a Sting from the Mirror Paper
Reporter Crick said
He has been sending Tweets for sexy Women or something like that.
Good he has said he is going next year
ahead of tomorrows paper.