Recently Skype has announced the new Skype 5.5 beta version for Windows which offers deeper integration with Facebook. Although Skype is already integrated with Facebook when Skype 5.0 was announced but this new release adds some more features for the users.
The major feature that is added in Skype 5.5 beta release is the Facebook Instant Messaging. You can now chat with your Facebook friends directly from Skype. Earlier this features was not available in Skype. You could only call or SMS your Facebook friends. The other noticeable feature is the Facebook Contacts Tab. You can use the new Facebook contacts tab to see when a Facebook friend you want to chat with is online and then start an IM conversation right from Skype.