Adding facebook like box to your blog or website is very easy. You can promote your blog over facebook through this like box. Facebook itself provides some social plugins so that you can add it on any blog or website in less than couple of minutes. Let us see how to add facebook like box to your website or wordpress blog.
Go to the below link for Facebook social plugins
You could able to see an application as shown in the above picture. Specify your facebook page URL, width, header etc. Click Get Code to generate code for the settings you specified.
Facebook will generate two codes one is iframe and the other in XFBML. Copy XFBML code as it is more dynamic, fast compared to iframe.
Paste the above code in your website at desired position.
If you are using wordpress place the above copied code in widgets-> Text and then save.
Update: This is how I placed code in my wordpress blog A New Tab, have a look
I just copied the code and placed here