Skype has launched a new beta (Skype 5.7 Beta for Windows and Skype 5.4 Beta for Mac) that deepens the integration with Facebook. Back in July 2011, Facebook announces video calling (powered by Skype) within Facebook. Now, this feature is available on Skype now.
With Skype Beta, you just need to sign in your Facebook account on Skype and you can make video call to your friends on Facebook. Here is the video.
and here is the link to Skype Blog.