Facebook offers a simple method to add a Facebook comment function on your personal website or blog. But the CSS styles are Facebook’s default style and cannot be modified.
There is another method to do this. Unlike the simple method above which uses <iframe> and ajax, this method seems to use PHP to fetch comments from Facebook and then put the comments directly into HTML so the related HTML codes and CSS styles can all be customized. Is there a tutorial that illustrate this method?
This method doesn’t use Facebook for commenting, it just uses Facebook accounts for authentication. The commenting system and comment data is stored outside of Facebook.
It’s technically possible to do this using Graph API if you have a page with links for each story you want to comment on. Look at https://developers.facebook.com/docs/reference/api/link/ for information about retrieving and publishing to the comments for a link.