Google+ has technically been an adults-only social networking service. In theory, only people 18 years old and above could sign up to use the service. Today that changed as Google announced via a Google+ post that teenagers (13-17 years old) can now sign up to use the service.
In announcing this new move, Google's Bradley Horowitz writes about some of the restrictions that teenagers will have when they establish their Google+ account. One of them deals with the multi-video chat feature Google Hangout. Horowitz states, " ... if a stranger outside a teen’s circles joins the hangout, we temporarily remove the young adult, and give them a chance to rejoin."
Receiving notifications from other Google+ members have some restrictions for its teenaged users. Horowitz states, "By default, only those in teens’ circles can say hello, and blocking someone is always just a click or two away."
More information about the safety rules and tips for teenagers on Google+ can be found on the Google+ safety web page. With a new age group now allowed to launch accounts on Google+ you can bet there will be a large surge in new accounts that will add to Google+ 90 million user base.