Facebook has cool feature to let your import your blog post automatically into your facebook account and it is pretty easy also. So, you don’t need any wordpress plugin to do that because it is already built-in inside Facebook application.
First, go to your profile page. Below your profile page, you will see a “Settings” button just below the shoutbox which is something like this 
Click on the button and you will see a lot of choices for you:
Now, you can the textbox for you to enter your blog URL. Enter your URL into the textbox and hit the “Import” button. Finished! You will see your facebook notes with 5 latest posts from your blog.
Everytime you post a new topic in your blog, Facebook will import the posts in the notes. This is a content reproduction techniques and very effective also.
Google frowns upon duplicate content, but since all of Facebook’s content is locked down behind account login, so it will NOT affect how Google sees your blog as duplicate contents since Google cannot access your Facebook contents except Facebook allow annonymous websites to access your Facebook content without an account login.
This is a simple guide on how to import blog post into Facebook. Hope this guide will help you to promote your blog 
Hey thanks! I had no clue this option existed. I’m going to go do it right now. Looks simple enough to do.
hey!! great tip!
i’m using facebook but i always update manually.
thanks!!
thanks for the tip bro! awesome! =)
Hi all. Hope you will find this simple tips helpful
Hey, great share! I’m using it right now, never knew this exist! Thanks for the tip =)
[...] will visit everyday to get connected with the community and share common interest. If you have set auto-post topic to Facebook or Twitter, you will likely to receive comments from your friends. Other purposes are like getting [...]
This look interesting,so far.
If there’s anyone else here, let me know.
Oh, and yes I’m a real person LOL.
Peace,
Thanks for the suggestion!
@Ah Yang
Thanks for visiting my blog. Hope you’ll find this useful. Good luck
Sorry mate. The setting is not working, can someone help?
Do you copy the exact feeds URL from your blog? From your blog, the feed URL should be something like this http://www.yourdomain.com/feed Copy this url into facebook Feed/URL section and it should work
Thanks mate. I got it
[...] Your Notes Posted at August 28, 2009 I am one of the frequent Facebook user and I have set autopost my blog posts to Facebook to ensure the process is done automatically without adding each link post manually at Facebook. [...]