Unfortunately, there isn't. Facebook used to have a 'Recent Activity' plugin, but deprecated it a while back and don't have any replacement for showing comments, Likes or any other activity on your site.
Sorry I don't have a better answer. We wish there was an easy way to display it to users as well.
Can it not be done by their api?
https://developers.facebook.com/docs/pl … mments-api
It looks like the API would facilitate that, but you would need a way to iterate through all of the article URL's on your page automatically (with custom code and store it in your database). This sounds possible if you want to implement this yourself but a lot of work. We have no plans on adding this complicated feature to JFBConnect.