Fox_News_Mobile.jpgThat’s gotta hurt. Instead of setting up shop on parent company News Corporation’s own social network, MySpace, Fox News Channel has chosen to network on the site’s chief rival, Facebook.

The New York TimesBrian Stelter wonders aloud—pointedly—whether it has anything to do with MySpace’s existing MSNBC partnership. But Fox said it’s all about audience.

“Facebook is currently the leading social network worldwide,” said Joel Cheatwood, the senior vice president for development at Fox News, in the article. “They also have a user that’s a little older and a little more sophisticated.”

So about Fox’s updated Facebook page: it now includes separate discussion boards, a comment wall, reviews, polls, and photo submissions, along with a special video player that lets users watch Fox video content, create playlists, post iReport-style individual videos, and send clips over to Facebook friends.

Fox News also has plenty of mobile content—see http://www.foxnews.com/mobile/ for details—but it doesn’t link to their Facebook page on mobile yet.