According to Michael Arrington of TechCrunch Digg Refugees may be heading to Mixx. I don't quite understand what he means by Refugees but anyways, what I pointed out in this post was how Mixx is an upcoming Social Digging site and how Digg is way ahead of Mixx right now.
Below is the list of top media news websites which allow their stories to be shared using community-based popularity websites like Digg, Reddit etc.
|The New York Times||Yes||No||No|
Now as you can see, except for Reuters no other big Media/News websites allow their stories to be dug directly by Mixx. Support for Mixx is miniscule as compared to Digg and that is what gets reflected from the stats too.