New How to add Facebook like box in your blog By Gamzeozgesaroglu

From the Dashboard, see the Blogger Dashboard, click Layout







 Click the Add a Gadget





Now click HTML / JavaScrip




Now copy the content and paste the code below.

<iframe src="//www.facebook.com/plugins/likebox.php?
target="_blank" href=http://www.facebook.com/yourpagelink&width=292&height=258&colorscheme=light&show_faces=true&border_color&stream=false&header=false&" style="border:none; overflow:hidden;
width:292px; height:258px;" >

 you have to put your page link in replace of yourpagelink