I have been trying to replicate the facebook "share" functionality , well actually i was in need of this functionality even before i knew that fb already had it..
I learnt a few things that this can be achieved by using the "Curl" and I also hear that this setting may have been switched in some servers so if anyone can refer me to other options that would always fetch me the - Title- Description- Images for sure I' d be thankful 
Regards
PS: Even a direction of the best possible way to get around it would be great!