I have only spent a fractional amount of time on G+ (it’s what the cool kids are calling Google+) but I am arriving at a similar conclusion as when I first hopped aboard the Twitter train. It’s a Game Changer (to steal a phrase from @_the_hoff). It provides a platform to share content with specific individuals from one platform. You may not need Facebook, Twitter, LinkedIn, etc. because one platform might allow you to do it all. Enjoying it.
I will now post this on Twitter and Facebook.