With a WordPress Facebook plugin you can integrate Facebook to your blog or website or the other way around WordPress into your Facebook page. Every website and there owners want to integrate Facebook functionality in there site. To improve your search engine ranking and to improve traffic to your business sites, one of the best options is to use the power of social networking sites.
So today, I’ve identified some of the 20 best WordPress plugins for Facebook that are available. Should you be in need of other terrific SEO WP plugins to improve your site. Each plugin has a brief description, if you require more information you can get this at the authors site.
1. Flexo Facebook Manager
All in One Facebook Manager. It integrates Facebook in your Site. Flexo Facebook Manager have many Options, which will allow the User to Achieve optimal Social Network Integration.

2. Styled Facebook Like Box
Displays a Facebook Like Box with options for border color, backgound color and a field to ajust the div via custom css styles such as positioning, border radius etc.

3. Facebook Comments
With that plugin you can replace default WordPress comments to Facebook comments plugin, then, the visitor will be able to use their Facebook accounts to leave comments on your posts.

4. Add Link to Facebook
Automatically add links to posts or pages that are being published to your Facebook wall, pages or groups. Simple one time setup and forget. The way links appear on Facebook can be customized.

5. Facebook Tab Manager
The Facebook Tab Manager allows you to create landing pages and other types of content to be displayed within Facebook, particularly within the tabs that appear on Facebook business pages and pages for other types of organizations.

6. Facebook Like Button Plugin
Facebook Button Plugin allows you to add follow button in the most easiest and flexible way.

7. Really Simple Facebook Twitter Share Buttons
This plugin shows Facebook, Twitter, LinkedIn, Google “+1”, Pinterest and other popular share buttons above or below your posts. Easy customization of active buttons and position in the Settings menu.

8. Darkroom Facebook Photo Gallery
Facebook Darkroom Photo Gallery is a fully animated jQuery photo gallery, inially styled as a darkroom photo drying line, with clothe pins and gravity-hung photos.

9. Socializer
Socializer! is a light and free plugin to share your posts on Facebook, Twitter, Reddit and more top social networks, Google Plus, by eMail, even tran.

10. Simple Social Buttons
Simple Social Buttons adds to your posts social network buttons, such as: Facebook “Like it!”, Google plus on “+1” and Twitter share. Plugin is fully customizable.

11. Sync Facebook Events
Sync Facebook Events to The Events Calendar Plugin by Modern Tribe.

12. Facebook Share Statistics
Shows informations about your posts shared on Facebook, with statistics and charts about the number of “like”, comments and clicks received.

13. Facebook Registration Tool
Integrates Facebook Registration Tool into WordPress registration/user system.

14. Embed Facebook
Embed Facebook lets you embed various Facebook objects (album, event, group, note, photo, or video) in a post or page. You just need to paste the URL of a Facebook object anywhere in a post or page, the plugin will automatically embed it for you.

15. WordPress Facebook Grabber
Wp Facebook Grabber plugin provide a way to take public content from facebook and insert in your WordPress pages or posts. It works usin graph facebook api and json php/jquery function.

16. Facebook Fan Box
Display a Facebook Fan Box on your blog. Put the Facebook Fan Box in your sidebar using the widget mode or call the function inside your template.

17. Simple Facebook Connect
Simple Facebook Connect is a framework and series of sub-systems that let you add any sort of Facebook functionality you like to a WordPress blog.

18. Feed Facebook, Leave Facebook
Generates a separate partial feed for Facebook. Use it to direct Facebook visitors to your blog while leaving your main full-text feed intact.

19. Facebook Page Promoter Lightbox
All your visitors should know about your facebook page and tell their friends. With this plugin you can display a preconfigured Facebook Page-Like Box inside a lightbox.

20. Facebook Members
Facebook Members is a WordPres Social Plugin that enables Facebook Page owners to attract and gain Likes from their own website. It uses Facebook Like Box.

These plugins will generate a separate feed for Facebook. If you don’t like how Facebook handles your blog feed, then you can use this plugin to generate excerpts only feed for Facebook.
Thanks mate. I have been finding the ways to play with these facebook plugins but failed due to lack of knowledge about the subject. But your pictorial post gave me a lot of awareness