Google's latest move into the domain dominated by Facebook has created a real buzz unlike its maiden foray last year. It is unusual for Google-the world's biggest web search engine- to play a catch-up game with established social networking sites such as Facebook and Twitter, but then, its past efforts that included Buzz, Orkut and even Google Wave did not make much of progress.

Unlike Facebook, Google+ offers an option to share specific content with different friends groups. The latest effort from Google is a project of the co-founder-turned-CEO Larry Page who tied employees' bonuses to the company's social strategy shortly after he took over from Eric Schmidt last

More : http://googleblog.blogspot.com/2011/06/introducing-google-project-real-life.html