Most of you probably already know
Wikipedia, the HUGE collaborative encyclopedia.
Well, they have many sub-projects and one of them is Wikinews, news written in a collaborative manner and with a Neutral Point of View (NPOV).
I think that the Daily Kos people should have a look and consider contributing or at least reviewing articles before they are posted to make sure that they are free from bias, and to make sure that important things to progressives are covered.
It is also good that Wikinews is not US centric and so people from all over the world can write and read about things that interest them -- we're all inter-connected, after all.
So give it a try.