On first try, moving from facebook to google+ doesn't work (everything +Google+
does to make it easy, isn't). That's like anyone trying to be Apple back in the day.
What users have to do is find the champs. Like +Jaana Nyström
or +martin shervington
. Then get on circles. Find circles. Like with +SharedCircles
or +Justin Matthew
Finally. Filter and pick your favorites from shared circles. I created a "hot circle" which is the only circle that shows up on the home page. This is the circle you interact with. Daily. Plussing. Commenting. But not judging :)