Nielsen has released The social media report third quarter 2011. This study examines social media and its users in the United States, but also includes other relevant markets and is a good indicator of trends.
Google Buzz goes beyond Google and enters into direct competition with Facebook, while incorporating the many applications of Google, from Twitter to GMail or Picasa. This new service is integrated with Gmail and has a mobile version for Google defines it as a new utility for sharing your news and media such as photographs or videos with your friends.
A new bet on Google, that everything and still not be available for all users of GMail it will be soon.