Facebook Like Lock for WordPress. Locks your content and user can unlock by clicking on like button.
Like Gate allows you to reveal some hidden/secret content when the user likes the article. Therefore increasing the likeness of your articles.
This widget displays feed items of latest activity from Stack Overflow
All in one FaceBook Plugins for WordPress including like button, Recommendations, Activity Feed, Like Box, Facepile, Live Stream, Comments, Login with
This plugin adds a Like-Button wherever you want on your blog. Before or after the content as well as a sidebar-widget. And many more!
Install Facebook Activity Feed widget for your wordpress blog.