Mixx has no niche. It's completely bland and generic. There is no single reason why I'd go there over any other site.<p>Plus, their layout is a mish-mash of content types. It's a jungle.<p>They've struck some secret sweetheart deals with newspaper companies to get their buttons on sites like CNN. I am assuming they were deals because there's no reason Mixx belongs in the same breath as some of the other sites with buttons on these sites. Mixx has backing from newspaper companies hoping to get in on the social news scene, which probably helped. And it's founders come out of the newspaper advertising scene.