It would be nice to take this further. Just recently I've been using Wordbooker which is a plug-in for Wordpress. What Wordbooker does is allow articles to be automatically be posted to Facebook, and then pulls in additional data later on.
The best thing about it is that if someone comments on the link on Facebook the comment gets posted to the original site article as well. And if someone posts a reply on the original article, then that gets pasted onto the Facebook comments thread too.
Could this be an option? (the bit in bold)