Google + has crossed 90 million users mark since its launch in June last year. The social networking site was opened to the public on September 20. Since the launch of the social networking site, the search engine giant has been constantly working to promote it – by adding toolbars and other buttons on its websites to aggressively promote the service. "I am super excited about the growth of ... Google Plus, which now has 90 million users globally - wellover double what I announced just three months ago. By building a meaningful relationship with our users through Google Plus we will create amazing experiences across our services," Google CEO Larry Page said while announcing the company's latest quarterly earnings. Meanwhile, lately many celebrities have been joining Google+. On Jan 24, 2012 the White House announced that it has joined Google’s social networking service.