Google News continues to integrate with Twitter and other micro blogging services. After testing a section that shows newsworthy tweets from your subscription, Google started to add to the Google News Onebox the number of times a story has been shared.
For example, Google’s Onebox shows that this article about Google TV has been shared by more than 50 Twitter users. Google links to the real-time results for this article, but the page only includes 10 results.
Taken from ‘Google Operation System’