Social media managers will recall Google Plus as the place where they also post whatever’s on Facebook and Twitter—also known as the site that that one co-worker swears by but can’t actually prove out with metrics.
A Google blog post touts the service’s Communities and Collections features:
Today, we’re starting to introduce a fully redesigned Google+ that puts Communities and Collections front and center. Now focused around interests, the new Google+ is much simpler. And it’s more mobile-friendly—we’ve rebuilt it across web, Android and iOS so that you’ll have a fast and consistent experience whether you are on a big screen or small one.