To administer your comments box, you need to be listed as a developer on the application used to initialize the JavaScript SDK. An 'Administer Comments' link will appear below the 'Post' button for developers of the application.
The Facepile plugin shows the Facebook profile pictures of the user's friends who have already signed up for your site.
You can specify the maximum number of rows of profile pictures to display. The plugin dynamically sizes its height; for example, if you specify a maximum of four rows, and there are only enough friends to fill two rows, the height of the plugin will be only what is needed for two rows of profile pictures. The plugin doesn't render if the user is logged out of Facebook or doesn't have friends who have signed up for your site using Facebook.
The Like Box is a social plugin that enables Facebook Page owners to attract and gain Likes from their own website. The Like Box enables users to:
- See how many users already like this page, and which of their friends like it too
- Read recent posts from the page
- Like the page with one click, without needing to visit the page
The Live Stream plugin lets users visiting your site or application share activity and comments in real time. Live Stream works best when you are running a real-time event, like live streaming video for concerts, speeches, or webcasts, live Web chats, webinars, massively multiplayer games.
The Login Button shows profile pictures of the user's friends who have already signed up for your site in addition to a login button.
You can specify the maximum number of rows of faces to display. The plugin dynamically sizes its height; for example, if you specify a maximum of four rows of faces, and there are only enough friends to fill two rows, the height of the plugin will be only what is needed for two rows of faces.
Using the new JavaScript SDK, the plugin is available via the XFBML tag.
Recommendations
The Recommendations plugin shows personalized recommendations to your users. Since the content is hosted by Facebook, the plugin can display personalized recommendations whether or not the user has logged into your site. To generate the recommendations, the plugin considers all the social interactions with URLs from your site. For a logged in Facebook user, the plugin will give preference to and highlight objects her friends have interacted with.
You specify a site for which to show recommendations for. The domain is matched exactly, so a plugin with site=facebook.com would not include URLs from developers.facebook.com. You cannot currently aggregate across multiple domains.
The plugin is available either via a simple iframe you can drop into your page, or if you are using the new JavaScript SDK, you can use the XFBML tag.