Facebook Social Plugins is several plugins provided by facebook. These what they say about Facebook Social Plugins.
Using Facebook on your Website allows you to create a more personalized, social experience using Social Plugins such as the Like Button and simplify your registration and sign-in process using Login Button and Registration Plugin
There are several plugins that included as Facebook Social Plugins. However, in this post Ill just to explain it briefly. Ill try to explain how to instal in other post. These are the list:
The Like button lets users share pages from your site back to their Facebook profile with one click.
The Send Button allows your users to easily send your content to their friends.
The Comments plugin lets users comment on any piece of content on your site.
The Activity Feed plugin shows users what their friends are doing on your site through likes and comments.
The Recommendations plugin gives users personalized suggestions for pages on your site they might like.
The Like Box enables users to like your Facebook Page and view its stream directly from your website.
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.
The registration plugin allows users to easily sign up for your website with their Facebook account.
The Facepile plugin displays the Facebook profile pictures of users who have liked your page or have signed up for your site.
The Live Stream plugin lets your users share activity and comments in real-time as they interact during a live event.
Wondering how to instal in your website? then wait for my next post. Or you can just directly go to http://developers.facebook.com (the source). Hope you can instal Facebook Social Plugins in your website successfuly.