What's a good open source video conferencing option for Chromebooks?

Michael wants to know how to video conference with his computer and Chromebook. Leo says that Skype will work just fine with it. They have their own plugin for Chromebooks. But Leo also recommends a new open-source utility called JITSI, which will set up an unlimited number of callers in a grid and it's very easy to set up your own JITSI server. Secure. Fast. And yours. You send your callers a web address, they go to it and they're talking. Nothing to install.