Google Plus Statistics: 135 Million Active Users Now

Well that is if you strictly count people using Google Plus alone. If you add up the folks using the + button and using hangouts etc, that number jumps to 235 million (Source)

The one area where Google Plus has to necessarily show improvement is this: user engagement. We had written about this before - that the average person online in the US spends 6.75 HOURS a month on Facebook, and just 3 MINUTES on Google Plus