Install Facebook Recommendations widget for your wordpress blog.
The Facebook Recommend application gives visitors suggestions on what topics to view based on the activity on facebook about your website. If the visitor is logged into Facebook, the application shows the personalized recommendations by giving preference and highlighting pages her friends have interacted with.
Following is the list of features of the plugin.
Increase time spent by the visitors on your site
Increase your page views
Personalize the user experience on your site/blog
Reduce your site's bounce rate