Here is one of my favorite tips for people who are more intermediate to advanced users on Google+.
Knowing the system:
When someone has comments on a post, they will receive a notification
each time someone comments on that post after them. As such, comments
are a powerful way of punctuating people’s attention.
Application:
Knowing this, you can use this to have ‘the last word’ on your comment threads, and get
engagement
from the right people. That is one of the great things about Google+,
you really have a lot of control as to who and how people engage with
you.
How to close off comments on your threads:
Simply click on the upper right of one of your posts and choose ‘disable comments’.
What to say once you close off comments:
Now you know how to close off comments, you need to decide how you would like to use them.
As you can see in the example below, I am letting people know the
next steps for the campaign I am running at that point in time.
How to see who has plussed the comment, and why!
If you click on the plus ones for a comment you can see who has plussed.
But here is the great thing: you can then look to add them people
into circles as you may well find they are some of your best engagers.
From there you can build the relationship further.
An extra tip…
If you re-enable the comments, you can add an additional message and
notify the people on that thread another time. A great way to market a
new idea to people who related to the old one.