[img src="https://ssl.gstatic.com/images/icons/gplus-64.png" caption="" credit="" alt=""]The 40 million or more users of Google+ have uploaded 3.4 billion photographs to the service in the last 100 days, the company has revealed.
Vic Gundotra, Google's SVP of social, offered the number on stage at the Web 2.0 conference in San Francisco Wednesday. He was responding to a question about engagement on Google+ -- whether there were any statistics that could prove people were actually using that service. "Someone's uploading those photos," Gundotra said.