WOW! Didn’t think this would happen so fast! Welcome to the world of instant results! Twitter, Facebook and Blogging just became TEN TIMES MORE IMPORTANT for your SOCIAL NETWORK MARKETING!
First, 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.
via Official Google Blog: Relevance meets the real-time web.