Google plus comments on blog
Blogger users can use Google+ comments on their blogs to simply leave a comment on a blog post by anyone Google+ account holder.
Go to your Blogger Dashboard and see under Google+ section that will show the admin a new option to enable Google+ comments.
Once your blog allows Google+ comments, anyone can see that under your article section.
Anyone Google+ users signed into Google+ can comment and share the post using their account.
The privacy options remain, which means you can comment and limit the audience your comment is visible to.
Why Google+ comments are important?
Google+ comments as similar as Facebook comments. It’s not just a social media tool but also is used for showing author of a particular page with Google’ authorship program.