FB Developer Help. DFF Drupal for Facebook (project page) This set of modules turns Drupal into a platform for developing Facebook Applications.
This allows you to embed your content and features within facebook, or allow facebook users onto your site via Facebook Connect. With Drupal for Facebook, you can harness all the power of Drupal in you Facebook App. Drupal for Facebook (homepage) Apps on FB | Facebook Developer. To drive more traffic to apps on Facebook, we enable various channels that enable new users to discover your app as well as existing users to re-engage with your app.
Each channel is designed to help engage users and our algorithms help surface the best content for each user. The current channels include: