As you may know, we've always included some blogs from news organizations in Google News. However, we've heard from some of our users that the way we displayed these blogs in Google News was not very clear. To address this, we're now visibly marking articles published on a news blog with a "(blog)" label attached to the publication's name.
The same sources that were there before will still be available, and nothing will change in our rankings to impact where or how often they appear in Google News. We're making this change to ensure a high quality experience for our users and help them find these types of articles.
Here's an example to illustrate our change: this article from the blog section of the New York Times is now displayed under the name [New York Times (blog)].
If we crawl a blog-formatted site, all of the blog's articles should be assigned the "(blog)" tag. If you notice sites that are labeled incorrectly, please let us know.