Science Daily: Portal site featuring press releases from research institutions and link to popular science news reporting. Advertiser supported. Offers RSS feeds.
ScienceBlogs: Blog network of working scientists and others with an interest in science, science news, and related topics. Sponsored by Seed Media Group. Offers RSS feeds.
Science News from the New York Times: Decent coverage for the lay reader, not as busy as some other resources. And, hey. It's the New York Times.
American Scientist: Publication of Sigma Xi. Most content is subscription-only but there is some free content as well.
EurekAlert: From the American Association for the Advancement of Science, publishers of the journal Science. Press releases from research institutions. Offers RSS feeds.
Where do you get your science news?