In 1992, InSoft Inc. launched Communique, a software-based Unix teleconferencing product for workstations that enabled video/audio/data conferencing. Communique supported as many as 10 users, and included revolutionary features such as application sharing, audio controls, text, graphics, and whiteboarding which allowed networked users to share and manipulate graphic objects and files using simple paint tools.[10][11]
Depending on the technology being used, participants may speak and listen to audio over standard telephone lines or via computer microphones and speakers. Some products allow for use of a webcam to display participants, while others may require their own proprietary encoding or externally provided encoding of a video feed (for example, from a professional video camera connected via an IEEE 1394 interface) that is displayed in the session.

Your product may be a physical item, a piece of software or even a kind of service. Webinars allow you to give real-time demonstrations and presentations with various features to promote vividly to the audience. For example, ezTalks Webinar can help to show the product with ultra-high-definition video and crystal-clear audio quality. For another example, ezTalks helps to share your latest presentations, documents or video clips and get everyone on the same page flexibly. What's more, the real users' questions on the product can be answered online quickly and the webinar Polls & Survey function may drive you better know about market demand, which can build or improve the relationships between the seller and customers. This can definitely boost your product sales. More importantly, many customers may be willing to pay to attend the webinar after you can get more followers and establish yourself an as authority in your industry, as they believe they can receive exclusive content and educational materials. 
The term "webinar" is a portmanteau of web and seminar, meaning a presentation, lecture, or workshop that is transmitted over the web. The coined term has been attacked for improper construction,[2] since "inar" is not a valid root. Webinar was included on the Lake Superior University 2008 List of Banished Words,[3] but was included in the Merriam-Webster dictionary that same year.[4]
For example, if you’re hosting a webinar on how to use WordPress blogs, and participants are asking a lot about increasing traffic, you could position your email like this: “I’m getting a lot of questions about boosting traffic to your blogs, so I’m throwing in a bonus how-to guide which will be sold later for $97, but you’ll get it free if you act now.”
In April 1999, Vstream introduced the Netcall product for web conferencing as "a fee-based Internet software utility that lets you send business presentations and other graphic information via e-mail to a Vstream server. Vstream converts the content, again using streaming technology, and makes the presentation available for viewing by up to 1,200 people at a time."[28] Vstream changed the company name to Evoke Communications in 2000, with a further change to Raindance Communications in 2002. In February 2006, Raindance was acquired by the InterCall division of West Corporation.
In general, web conferencing is made possible by Internet technologies, particularly on TCP/IP connections. Services may allow real-time point-to-point communications as well as multicast communications from one sender to many receivers. It offers data streams of text-based messages, voice and video chat to be shared simultaneously, across geographically dispersed locations. Applications for web conferencing include meetings, training events, lectures, or presentations from a web-connected computer to other web-connected computers.
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