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.

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. 
You’re already a big winner when you’re in front of your webinar audience. Participants were interested enough in your content to register, hold space on their calendar, then show up attentively to your webinar. They have self-qualified themselves as being in the market for the type of product or service you offer, and think you’re the God of SEO (or whatever your schpeel is on).
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.
Presentation of visual materials most often is accomplished through one of two primary methodologies. The web conferencing software may show participants an image of the presenter's computer screen (or desktop). Again, depending upon the product, the software may show the entire visible desktop area or may allow selection of a physical area or application running on the presenter's computer. The second method relies on an upload and conversion process (most commonly consisting of Microsoft PowerPoint files, other Microsoft Office electronic documents, or Adobe PDF documents).
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]
To attract more participants, you can start from some free webinars for certain times. Once you can get webinars well prepared, run webinars interactively and show the great value of your webinar, more and more participants will be willing to pay for your entire webinars and then it's a good chance to create paid webinars to monetise your expertise.

You can do this through statistics or survey results from your existing customers. Imagine the conversion capability of a statement like, “Seventy percent of customers using our product shaved 10 points off their golf game within a month!” You can just hear them clicking your CTA. Just be sure not to make any outrageous claims—especially income claims. You want to preserve their sense of trust in you.

If there is a bunch of additional learning resources to be referred to during the webinar and have been prepared in advance, there will be a need to host them somewhere. You will need to set up a link of associating with the learning material inside the webinar. Some of the participants will definitely spend some money on it as they are eager to get more relative knowledge. You might also be charged for hosting the webinar and this will be part of your budget if you intend on gaining some profit with the webinar. But you're also getting money from effective broadcasting as it plays an advertising role. In other words, you're creating webinars for profit.

A good webinar software should be selelcted during the preparation. But how to choose the right one and how to do a webinar for free ? Having yourself equipped with the proper webinar tool for creating your own webinar plays an important role in the online presentation process, as you will be able to demonstrate a concept to the participants in an easy way. And the webinar tool shoul allow you to create paid webinars, which make sure you can make money with webinars in a easy and safe way.

So instead of meeting with prospects one-on-one, and making dozens of presentations, a better option is to schedule a Webinar for each Wednesday night for example. Just invite your prospects and tell your team members to invite their prospects to the Webinar too. This way,  you, as the best presenter gives the best live presentation, and answers questions. Then each person takes over, and talks to their own prospects and directs them to their web sites to sign them up or make the sale. It’s been done for years, and some of the top recruiters benefit greatly from online Webinars.
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.