head안에 넣어야 작동됩니다.

<meta property="og:type" content="">
<meta property="og:title" content="">
<meta property="og:description" content="">
<meta property="og:video" content="">
<meta property="og:image" content="">
<meta property="og:url" content="">
<meta property="fb:admins" content="">
<meta property="fb:app_id" content="">

추가이후
http://developers.facebook.com/tools/debug
에서 에세스 토큰을 갱신합니다.