Wikipedia: "A videoconference or video conference (also known as a videoteleconference) is a set of interactive telecommunication technologies which allow two or more locations to interact via two-way video and audio transmissions simultaneously.
Videoconferencing differs from videophone calls in that it's designed to serve a conference rather than individuals."
In the context of education, video conferencing can provide a tool for broadcasting lectures to distant students. This is mainly one-way communication but video conferencing can also be used for more interactive ways of learning. It is possible for students to ask questions, comment on different aspects of the lecture or to organize a small-group discussion on some paper.
When using video conferencing it is very important to take care of a few preparations. Besides testing of the technology and the connection well in advance, the organizer should inform the students about technical and other preparations needed before the conference. Students should receive conrete and clear guidelines on the technology and be aware of its basic features. Furthermore, they should be aware of the good practices of behaviour and communication over a video conference.
Within blended-learning solutions, video conferencing may prove to provide a simple way to get a face-to-face contact with distant students for instance at the beginning, in the middle or in the end of a course. Students may ask questions about the learning process, assignments etc. and the teacher may inquire students' experiences and feelings after a self-study period. Video conferencing can also be used for paper presentations and discussions by the students.
Examples for video-conferencing systems are:
Another well known tool which can be used for simple video-conferences is: Skype
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