Kevin: I agree with Zachary Seward at the Nieman Journalism Lab, DocumentCloud is a project to watch. I would say it's not only a project to watch, but if you're a news organisation, I'd say that it's a project to join. The project to house primary source material has signed up 20 more organisations including the American Civil Liberties Union, the Washington Post, the Chicago Tribune, the New Yorker and The Atlantic, just to name a few. The other interesting part of this announcement is that they have also partnered with Thomson-Reuters OpenCalais to generate meaningful meta-data across all of these documents.
Hats off to bloggers at Nieman Lab who have been doing some excellent original journalism covering developments like this.