FACEBOOK SHARING PREVIEW

hello world! ;D

i’m trying to get my facebook share link to work properly.
right now when you click on ‘facebook’
in the entry footer, the preview doesn’t show any information at all.

there is no thumbnail or no excerpt.

i’ve tried using the meta tags as instructed by facebook
(http://wiki.developers.facebook.com/index.php/Facebook_Share/Specifying_Meta_Tags)

but still no luck.

can anyone point me in the right direction?
any help would be very much appreciated 🙂

my site:
http://www.sirulian.net

thank you!
cheers,
ben