If you are a Yahoo messenger user, you must have already been introduced to the import contacts option quite sometime back, the import function supports importing contacts from various websites like Gmail, Hotmail, MySpace, Orkut and more.
In addition to the already existing domains, Yahoo had added an option to import contacts from FaceBook, this option is available when you choose Import Contacts menu.
All the contacts on facebook will be available and you can chat with your facebook contacts directly from Yahoo! Messenger.
Follow this link : Import Facebook Contacts to Yahoo.
