Starting today, you can bring Google+ Comments to your Blogger blog. Once you've enabled the feature through your Blogger Dashboard, you'll enjoy a number of important benefits:
View your blog and Google+ comments, all in one place.
Now when you're browsing your blog's comment threads, you'll see activity from direct visitors, and from people talking about your content on Google+. For example, if there's a public Google+ discussion about one of your blog entries, those comments and replies will also appear on your Blogger blog. This way you can engage with more of your readers, all in one place.
Help readers comment and connect with their circles.
Your blog readers will now have the option to comment publicly, or privately to their circles on Google+. And when they're browsing blog comments, they can view all of them, just the top ones, or only those from the people in their circles.Google+ Comments Now Available On Blogger [googleblog.blogspot.com]