Google getting its Plus on: Social network could have more users than Twitter and LinkedIn in just a year

So Google+ has already signed up nearly 15 percent of U.S. adults, and a Bloomberg report suggests this climb could reach 22 percent within a year—thats more than one in five adults on a brand new social network.

If that doesn’t shock you, how about the fact that this would be deeper penetration than either Twitter, 5 years old, or LinkedIn, a decade old, have right now? 

Of course, Twitter and LinkedIn will continue growing so it’s doubtful that Google+ will actually surpass their userbase—especially Twitter—but nonetheless, G+ continues to impress.

Nearly have of G+ users say they read content daily, less than Facebook users at more than 60 percent, but a notch above Twitter (42 percent) and well ahead of LinkedIn (8 percent).