Facebook has made it really simple actually, just follow the steps I describe below, and you will have your own Facebook commenting box in no time ^.^
- First, register your website at the Facebook Developer page (Setup your Website URL)
- After you have registered successfully, you should see a page that tells you what your AppID is
- Next, go to this page to get the "Comments" code. (http://developers.facebook.com/docs/reference/plugins/comments)
- Click on the "Get Code" button which will then show you a popup window with code to paste in your Blogger template.
- Copy and paste this code in Notepad because before you paste it into Blogger, you will need to replace the word AppID with the number of your actual AppID
- Go to your Blogger template, and at the place where you want the comment to appear, copy and paste the code
- I placed the code just before the ending of my second in the Blogger template code
- Save the blogger Template.