He is currently managing director of the Glasgow-based Herald & Evening Times Group’s s1 series of websites and will replace Roger Green who is set to retire.

Mark, who has overseen the growth and development of the Herald & Evening Times recruitment, property and activity listings site, will be made responsible for Newsquest Digital Media, including S1.

Ewan Stark, sales director for S1, will be promoted to acting managing director, reporting directly to Mark.

Mark began his media career as a radio journalist and moved to television in 1989 working both at the BBC and in the independent sector.

Prior to setting up s1 he was an executive producer and head of news at Scottish Television.