The facebook comments plugin allows you to add a comments section to your Joomla! articles.
Simply install, put in your facebook App ID and then in each article you want to have comments on type in:
App ID: you can get the appid by clicking here, click on apps, add new app, name it after your site and on the next page you will see the App ID!
Number of posts: this is how many post to show on the page if you set it to 5 then "pagination" will kick in below the comments.
Width: is the width of the comments box.
Color scheme: choose between light and dark.
Language: is the core language of the comments box, this will not however change people's comments.
Facebook Comments 1.0.2