While checking various news sites today to read about the power outage on the U.S. East Coast, I noticed two sites -- the Chicago Tribune and CNN -- displayed the news alert via urgent banners at the top of most (all?) article pages. It's a smart idea that helps disseminate breaking news to people who aren't necessarily reading the sites' home pages.
I'd known (and reported) that CNN had such a capability but hadn't seen it in action until today. As for the Trib, this is the first I've heard of their implementation.