To add the Facebook famous “Like” and “Recommend” button to your posts and it increase their website popularity.
First, Login as administrator in your WordPress admin panel. Then go to Appearance -> Editor.
Then place the following code wherever you want the like button to appear:
<iframe src=http://www.facebook.com/plugins/like.php?href=<?php echo urlencode(get_permalink($post->id)); ?>&layout=standard& amp;show_faces=false&width=350&action=like&colorscheme=light scrolling=”no” frameborder=”0″ allowTransparency=”true” ></iframe>