Another option is to have Facebook Comments on your Ghost blog.

• To add this, start by visiting the Facebook Developers area here:

Put in an example URL for your site and the number of default comments you'd like to have appear.

• Then click "Get Code". Make sure you're on the "HTML 5" tab.

• Then open Cyberduck and navigate to your theme folder.

• Select the post.hbs file to edit with your text editor

• Add the first section of code (the Javascript SDK) in the body area (which, depending on the theme you're using should be right after {{content}} ) and before the footer:
  

• Then add the actual plugin comment code to the bottom of the page (again, depending on the theme this might vary, but after {{post}} and before </article>) :

The end result is having Facebook Comment functionality at the end of each post: