Check out Ripples, this cool new feature on Google+ that visually shows displays the way your posts are being viewed and shared.
This is something that can’t be done on Facebook or Twitter without third party applications. The real value here is the ability to identify influences, and therefor organically grow brand awareness through trusted referrals.
For instance, if you notice that Bryan Seachest shared your coolest post last week about “Wild Striped Hens”, you could look to reach out to him again next week if you are going to be posting about those hens, or any other pure beasts of burden.
http://www.socialmediaexaminer.com/how-google-ripples-provides-social-sharing-insights/