Web Conferencing
Web conferencing is used to hold group meetings or live presentations over the Internet. In the early years of the Internet, the terms "web conferencing" and "computer conferencing" were often used to refer to group discussions conducted within a message board (via posted text messages), but the term has evolved to refer specifically to "live" or "synchronous" meetings, while the posted message variety of discussion is called a "forum", "message board", or "bulletin board".
In a web conference, each participant sits at their own computer, and is connected to other participants via the internet. The most basic feature of a web conference is screen sharing, whereby conference participants see whatever is on the presenter's screen. Usually this is accompanied by voice communication, either through a traditional telephone conference, or through VoIP, although sometimes text chat is used in place of voice.
A webinar is a seminar which is conducted over the World Wide Web. It is a type of web conferencing. In contrast to a Webcast, which is transmission of information in one direction only, a webinar is designed to be interactive between the presenter and audience. A webinar is 'live' in the sense that information is conveyed according to an agenda, with a starting and ending time. In most cases, the presenter may speak over a standard telephone line, pointing out information being presented on screen, and the audience can respond over their own telephones, preferably a speakerphone.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Conferencing".

