tangor - 1:48 am on Nov 19, 2011 (gmt 0)
As an FB occasional user, old time webmaster... and NON google anything, I'm on the outside looking in. Not sure how many like me are out there, though I imagine that is a Very Significant Number, I haven't found any compelling reason to use the +google, or any of google's other services (gmail, etc.) Also have a privacy concern, block all ads (NoScript), etc. And while those with like mind might be a smaller Significant Number, I have no doubt it is still a Very Large Number.
I return to the word used above COMPELLING... and I'm just not seeing it. Not google bashing, merely observations of what's out there on the web and what I find useful or necessary.