How to Post Link with picture on other's fan page

Hello, Is there any one who can tell me or help me out.

Facebook has just changed everything and i can't post my website Link with thumbnail picture on any community..I mean if i post my link of any community or fan page, the Thumbnail pictures which generates from my website don't show on the page. Only link are showing on page. But i saw many people doing like viral or spam thing like they are posting repeatedly and the links they are posting are showing the thumbnail picture. So i want to know how to do post URL with thumbnail picture on any community or fan page in Facebook. I can also pay little amount for it, if any one can tell me the right way. Thanks

 

$args = array(
'message' =>'Message goes here',
'link'=>'link goes here',
'description'=>'description goes here',
'picture'=>'http://domain.com/images/image.jpg'
);

$access_url = 'https://graph.facebook.com/me/feed?access_token='.$access_token;
post via curl

then you will get thumb nail picture