In an effort to compete better with Google Hangouts, Microsoft’s Skype has made group video calling — previously available only to Skype Premium subscribers — free for all Mac, Windows, and Xbox One users, with support for more platforms slated for the future. In our use, Skype’s quality and reliability has suffered over the past few years, and while Google Hangouts has a lousy user experience for starting and joining calls, it is far more stable than Skype once you get going. follow link
Option-click to Hide Apps Quickly
This trick has been available in the Mac OS for years, but many people still don't know it. If you have too many windows cluttering up your screen, you can hide specific ones easily as you work. When you're in any application, hold down the Option key and click on another app's window, on the Dock, or in the Finder to switch to that other app and simultaneously hide all the windows in the previously current app.
Skype Makes Group Video Calling Free