Face Flow - Free Video Conferencing for Four

Face Flow is a free video conferencing system that can accommodate up to four participants at a time. Using Face Flow you can text chat while video conferencing. To invite people to join your Face Flow call all you have to do is send them link to your conversation. And if you're so inclined, you can watch a video and chat about with your friends.

Applications for Education
Face Flow could be useful for hosting an online conversation with students and or parents. If you have students whose parents cannot meet in the same place, but can meet at the same time, Face Flow could be a good way to get them together for a parent-teacher conference.

One quick word of caution about Face Flow, they do have an option for "random chat" so this is not something you would want to set students loose on without supervision.