IGN Entertainment has partnered with Microsoft to operate the MSN videogame network Game On, reports MediaPost.  IGN will provide syndicated game content from its own game sites and take over Game On’s ad sales efforts.

The content syndication component of the partnership helps further expand IGN Entertainment s reach in the online entertainment category.  Citing comScore Media Metrix data, MediaPost says News Corp. owned IGN reaches nearly 48 million unique users.  Among the network of IGN sites are game sites IGN.com, GameSpy and TeamXbox, digital game content download sites FilePlanet and Direct2Drive, film site Rotten Tomatoes, and lifestyle site AskMen.com.  IGN already syndicates game content to Xbox Live, Yahoo, Hulu and MySpace.

Read more at MediaPost {link no longer active}.