Google Plus shares in the SERPs
We can understand that the personalization impact is quite strong, and that Google Plus post shares themselves can rate in the SERPs. This is already a compelling need to engage in Google plus, specifically if there is an actual audience for you there.
We also know that Google gets the information from Google plus directly. Google plus also is continuing to grow, and it is strategic to Google’s plans.With Hummingbird, it seems increasingly likely that Google plus will have some influence on non-personalized results.