I personally HATE social networking in my news. That is, for example, you going to the Huffington Post and seeing Facebook Connect buttons, as well as Twitter / Google / Yahoo! login buttons.

However I do think that the idea of use aggregation leaking in to the site, Reddit Style, could be a good resource. However that probably wouldn't be a main feature of the site, but likely a sub-section of the site completely separated from the actual content.