Not sure you knew this or not.  If you use any one of the social tools, you are a so called “Social Influencer”.

Google is taking another shot at Facebook. There are social dynamics involved here, not just feature comparison between Google Plus and Facebook.

Even though there are some unhappy facebookers, Google has an uphill battle to entice those folks to move. It is difficult to move from an established neighborhood to another neighborhood where you have no friends or family.