Google's social networking site Google+ started with a great momentum, compared to the other social networking sites, earning over 25 million users within a month.

Few weeks after Google+ was launched, Google had taken up a celebrity-acquisition plan, as CNN reports, to increase publicity for the site.

Mark Zuckerberg, the CEO of Facebook, competitor to Google+, was one of the early adopters of Google's networking site.

Here is a list of the big shots in Google+: