Google [today] unveiled Google+, yet another attempt by the search giant to overcome its past miscues in the social networking space.  
 
More people visit Google's network of websites than Facebook each month, but Facebook is killing the search company in categories that advertisers care most about: Time spent and pages viewed...  
 
Google's latest solution to this growing trend is Google+... On Facebook, people are either "friends" or not. Google+ makes that distinction more fluid, letting users group their contacts into smaller categories, such as relatives, co-workers, or members of a yoga class. Information can be shared selectively with each group...  
 
Unlike Google's previous social attempts, such Orkut and Buzz -- which had big, bold launches and are largely considered failures -- Google is moving slowly and cautiously with Google+. It has only been launched for a small group of users, and others need to be invited to the service to use it..
Google+ invites shut down