Summary
In this article, you've seen how you can publish stories to Facebook newsfeeds once your users have connected your application with Facebook. (The association is automatic if you use Facebook as the primary authentication mechanism.)
To publish short stories to Facebook, you have to create a feed template, register it with Facebook, and use the Registered Template ID in calls to the Facebook Connect showFeedDialog function. You can publish stories to the newsfeed of the user who has connected your application with her Facebook account, or to a group of her friends.
Finally, remember that Facebook can help you to spread the word about your application. I recommend using the Action Link field in the feed template to entice friends of your users to join your community.