arutoria - 10:10 am on May 30, 2013 (gmt 0)
Has anyone experienced a provable benefit from Google+?
I remember when Google+ was first released, there were a lot of "pollution" at the SERP, as Google promotes the pages you +1'ed to your personalized result.
Those promotions seemed to have faded lately. But occasionally I still see strange personalized results which can only be explained by my G+ activities. So I think if you can get your readers to +1 your pages, you are more likely to see them return to you through Google, but not necessarily for others.
However, if you are looking for referral traffic, Facebook is still the better place to go...