Now you no longer have to worry about whether your:
Family will get fed-up of seeing your business related posts
Friends will get fed-up of your business posts
Business associates will see your family pics and posts
Because you can pop each post on Google plus into a Collection which is your way of organising posts into categories, and then those people that follow you (and those that don't) can choose which of your collections they want to follow and see in their news streams.
This also means that you can choose which posts you see from those people you follow and you can follow someone's collection without adding them to a circle too, so you get complete control over what you see and from who and which collections you get notifications from too.
I am loving this new feature......