* Profiles, activity streams and social objects are the trifecta for social sharing. But the really interesting stuff starts to happen when they integrate their more collaborative properties. Let alone bring Plus into their one social property, YouTube, which is one hell of a property.
* Its not clear to me that Plus will be able to hang on to its early adopters, and is mostly getting feedback from them right now. Some of us want to move over to something new, especially from Facebook.
* My guess is that the Circles model will retain certain conversation leaders in the same way LinkedIn does for its professional demographic. But further integration will be required for true differentiated utility.
* That said, I believe that Google has a full commitment behind this, is iterating quickly upon a good start. Google will be a player in social and thats largely a good thing.