According to Google, Real-Time allows you to monitor visitor activity as it happens on your site. The reports are updated continuously and each page view is reported seconds after it occurs on your site. For example, you can see: how many people are
Lately I’ve circled Chris Brogan (and you should too) who recently wrote: “Google+ for Business. An in-depth look at the inner workings or Google+ and tips and tricks that’s great advise. The book is mentioned in a recent article in Top Rank, where they quoted a few of Chris’s tips for creating an effective profile on Google+.