GoTalk is a new video conferencing system designed for small groups. The GoTalk system is easy to use. Part of the reason why GoTalk is easy to use is that it doesn't require you to register to get started. To get started simply go to the GoTalk site, select a URL for your conference room, and click "create" to launch your video conference. People join your video conference by going to the URL that is assigned to your conference room.
GoTalk works best in the Chrome web browser. If you use it in Chrome, you can share your screen during your video conference. GoTalk has options for sending written messages and links during your video conference.
The free version of GoTalk limits you to four participants at a time. The free version also does not include a screen recording option.
Applications for Education
In a world in which Skype, Zoom.us, Appear.in, and many other video conferencing services already exist, I'm not sure that GoTalk is going to better than those established services. That said, if you've tried those other services for hosting short online tutoring sessions and you want to try something else, GoTalk is worth trying.