Google Operating System noticed Google News added a new box to the side bar named “Most shared.” The most shared box must be using social sharing features to see the most shared stories via Google Reader, Twitter, Gmail, Google Buzz and maybe even Facebook?
You can sort the most shared box by Past 24 hours, Past Week or Past Month. Then you can either click on the articles to read more or share them on email, Google Reader, Facebook, Twitter or Google Buzz. Here is a picture:
Google News was testing a friends news box that seemed to track and list what your friends were sharing. I am not sure if this will replace it, be integrated with it or what. But right now, I am personally seeing the “most shared” box on the bottom right panel on Google News.