Facebook Like Box

hi folks
please tell me how to add Facebook Like Box on my site

Check out this Facebook page:

Or just use basic code like this (making sure to insert the page URL where indicated):

<iframe src="http://www.facebook.com/plugins/like.php?href=[I][COLOR="#FF0000"]current-page-url[/COLOR][/I]&amp;layout=standard&amp;show_faces=false&amp;action=like&amp;colorscheme=light"
        scrolling="no" frameborder="0"
        style="border:none; height:25px; width: 440px;"></iframe>

some site have plugin like wordpress etc and some site need codes search in google