curl -F 'access_token=...'
     -F 'message=Link with empty source and empty picture'
     -F 'link=http://stackoverflow.com'
     -F 'picture='
     -F 'source='
     https://graph.facebook.com/me/feed

curl -F 'access_token=...'
     -F 'message=Link with empty source and empty picture'
     -F 'link=http://cnn.com'
     -F 'source=http://cnn.com'
     https://graph.facebook.com/me/feed

curl
     -F "message=test message, attempting to verify solution of SO problem"
     -F "name=StackOverflow"
     -F "link=http://stackoverflow.com/questions/4246170/how-do-i-post-a-link-to-facebook-without-a-thumbnail"
     -F "access_token=you_dont|reallythink|imgonnapostmyrealaccesstoken_doya?"
     "https://graph.facebook.com/11239244970/feed"

curl -F 'access_token=...'
-F 'message=404 picture'
-F 'link=http://example.com'
-F 'name=Example'
-F 'description=example.com is not about bbq'
-F 'caption=example.com'
-F 'picture=http://example.com/this/does/not/exist/1.gif'
https://graph.facebook.com/me/feed/