Well I think there are many bloggers who doesn't even know who doesn't even know how to place a like box of their fan page at Facebook promoting it at their blog to get more fans/likes so that even from the status of the page make the blog get visitors too. So here is the simple tutorial with images so that it makes easier to understand.
Before you do this you have to make sure that the border color suits your blog template whether it is light/dark etc Then whether you want the feeds, the people who liked your page. Also collect the URL of the page you want to show the ad of.