The following is how:
1. Open http://developers.facebook.com/plugins/?footer=1
Later came a new window / new tab, and then you select the "Like Box".
2. After that you address the content of your blog page fan pages, and set her appearance. Examples like this:
3. After your liking, then click "Get Code" to get the code. Later there are 2 ie codes and code XFBML iframe code, choose the second one is XFBML for the tide to your blog.
After getting the code, you can simply paste it in your blog.
Good luck!
Good luck!