we're introducing new features that bring your search results to life with a dynamic stream of real-time content from across the web. Now, immediately after conducting a search, you can see live updates from people on popular sites like Twitter and FriendFeed, as well as headlines from news and blog posts published just seconds before. When they are relevant, we'll rank these latest results to show the freshest information right on the search results page.
For example, if one searches right now on Kirkus Reviews (which is history), here are the results:
But if one selects “show options” and “latest,” here are the results: