Google+ (Google plus) is an online social networking service.

Before the launch, Google referred to Google+ as Google Circles, a name alluding to its emphasis on organising friendship information. Google+ is considered the company's fourth foray into social networking, following Google Buzz (launched 2010, retired in 2011), Google Friend Connect (launched 2008, retired by March 1, 2012) and Orkut (launched in 2004, as of 2013 operated entirely by subsidiary Google Brazil - retired in September 2014). More: en.wikipedia.org.