From Mashable: "Facebook announced sweeping integrations for WordPress.org and WordPress.com VIP users on Tuesday morning — allowing you to add your blog content to the social network in one click.
The integrations are accessible through a Facebook for WordPress plugin and allow bloggers and administrators of WordPress-based sites to cross-publish content to WordPress, their own Facebook Timelines and the Facebook Pages they oversee.
Additional widgets available through Facebook’s new WordPress integration include:
-> an activity feed to show readers what their Facebook friends have been up to on your WordPress-powered site;
-> a recommendations plugin that suggests new articles and pages to readers as well as lets them track what they read on their Timelines;
-> customizable Like, Subscribe and Send buttons;
-> a comments box allowing readers to cross-post reactions to your site and Facebook.
Find out more: https://developers.facebook.com/wordpress/