Mac users will be happy to know that their favorite VoIP software, Skype has just been updated to version 5.1. The update brings a bunch of new features as well as the usual bug fixes to the video conferencing/instant messenger. With Skype 5.1, participants can now easily identify active speakers in a group call, and can select recently called numbers stored in the dial pad. iSight Firewire webcam detection has been fixed, and the option to provide call quality feedback after a call has been included. Head here to get the latest version of Skype for Mac and here to find out more about the update.