Today, Google not only announced it's real-time search going live, but also a partnership with Facebook and MySpace to pull in data in real-time.Google real-time search will update as things happen / are posted around the web such as tweets, news articles and so on.
Please note that this new feature is not available for everyone yet, and should be available to all in a few days. To get an idea on what Google real-time search looks like, take a look at this video:
For more info, see the official Google announcement.
