BuddyPress.org

I’ve never seen one (although there might be), but the challenge I have is understanding what from Facebook you’d want to create the post on the blog. Would you want someone’s wall post to be added to the blog? That doesn’t make much since to me. Would you want a Facebook Note to be added to your blog?

The other option is to add the WordPress app (and there are probably a number of these out there) to your Facebook account. I think a Facebook WordPress app would be able to post to your blog and to Facebook at the same time. At least I think there are 2 way Facebook apps like this.