Reid will report to a European commercial director, a position for which parent division Fox Interactive Media is recruiting. The post will assume some of the duties held by Jay Stevens, MySpace's vice-president of European sales and operations, but his role is understood to be evolving.
MySpace.com currently offers search, display advertising and customised communities in which brands can take out a MySpace page and people can become "friends" of the brand in the same way as they can with individuals.
Sister brand Sky One recently took advantage of these customised community opportunities for its new programming acquisition Lost. As well as creating a dedicated website, the first two episodes of the third series of the US show were streamed through MySpace.com.
At Emap, Kurt Edwards, commercial director of its radio station, Kiss, and previously part of Emap Advertising's interactive team, has taken over Reid's role.
Reid took on the head of online sales role in August, when he was promoted from account director as part of an Emap-wide restructure. The move was one of the first appointments made by digital sales director Jason Trout, who was appointed magazine sales director last month, replacing Carrie Barker.
Emap is currently recruiting for Trout's successor, who will be a key signing as the media owner has earmarked a large part of this year's record £25m new product development for digital.
News Corporation acquired US internet entertainment company Intermix Media, the owner of MySpace, for $580m (£3 31m) in July last year. In August this year, Google paid News Corporation $900m (£470m) for a three-year deal under which the search engine will provide its services for MySpace and other Fox Interactive Media properties.