CXO

Five apps for video calls and collaboration

Tango

You can search for friends in your contact list who have already installed Tango or send invitations to those you want to try the app with you. You can also change Tango settings to control when the app starts, check for updates, and manage the microphone and camera you're using.

About

Katherine Murray is a technology writer and the author of more than 60 books on a variety of topics, ranging from small business technology to green computing to blogging to Microsoft Office 2010. Her most recent books include Microsoft Office 2010 P...