Skype is launching Skype 5.4 for Mac Beta, which introduces the same Facebook integration found in Skype 5.5 for Windows.
Just like in the company's Windows client, you will now be able to IM and connect with your Facebook friends without leaving Skype. You will also be able to read and update your News Feed, as well as comment and 'Like' your Facebook friends' posts - all within Skype for Mac.
Skype is also introducing an advertising platform in this new release. Users who are a paying Skype consumer or have Skype Credit won't see any display ads; similar to the model that is currently being used in Skype for Windows client.