Google Plus comments
Google Plus comments have been enabled for the blog. Now when I share a post on Google Plus, any comments under that post will automatically appear as comments on the blog post that was shared. You will need a Google account to post, though I am not sure if you need to have a Google Plus profile or not. I experimented last night with a brand new "dummy" account that did not have a Google Plus profile, and it created a Google Plus profile automatically when I tried to post a comment.
As always, please follow the comment guidelines.