Here is a tutorial on how to create a custom link that posts to Facebook, then rewards the user through rules (userpoints, downloads, role, etc)

Install https://www.drupal.org/project/fb_autopost by following the detailed video tutorial at http://vimeo.com/56026903

You should now be able to post to Facebook:

Please search the issue queue for examples on how to work with Facebook Events.

Chances that you are publishing a Facebook publication link on the user timeline or to a Facebook fan page upon node creation are quite high.

The video tutorial and rules can help you greatly with that. The problem arises when you want to keep track of the changes in your node and reflect those changes in your Facebook publication. To do so you will need to store the facebook publication remote ID Facebook assigns to your publication when is posted.

The most common place to store this is in the Facebook Publication entity you created. Then the workflow is:

Using Facebook Autopost to post node creation to a FB account

Configure Facebook App

• Go to https://developers.facebook.com and create a developers account.
• Click on '+Create new app'
• Give your app a name and (optional) namespace
• Take note of the APP ID and APP Secret

Installing Module