Dive summary:

• Google announced in a blog post that it has 500 million Google+ users with 235 using it monthly and 135 million actively using the Google+ stream.
• The 17-month old Google+ has less than half of the 1.1 billion Facebook users.
• The Google+ Communities feature is similar to Facebook Pages, and Google+ Communities launched brands Audi, Star Wars and Call of Duty this week.

From the article:

… In addition to a Facebook Groups rival, Google is also rolling out an Instagram rival for Android devices. Google acquired the company behind iOS-only photo-editing app Snapseed in September—the same month Facebook closed its acquisition of Instagram. …