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).
Unveiled in 1996 by InSoft Inc., CoolTalk was a multimedia software tool that let PC users view data displayed on a shared whiteboard, exchange real-time messages via a chat tool or speak with each other via a TCP/IP voice connection. The product worked with Microsoft Sound System-compatible audio boards and was available in a 14.4-kbit/s version or 28.8-kbit/s version. CoolTalk was later packaged with popular Web browsers of the time.[20] CoolTalk 14.4 and 28.8 sold for $49.95 and $69.95, respectively, in 1996.[11][21]
Customers know that private sessions allow them permission to ask endless questions and discuss their unique obstacles in a safe, constructive setting. You can build immense trust and loyalty through calls like this and transform customers into brand evangelists that double-duty as promotional machines for you. Thirty to 60-minute calls work great. You could even record these calls and repurpose them as products in the future. Cha-ching.
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. 

Using Webinar software participants can share audio, documents and applications with webinar attendees. This is useful when the webinar host is conducting a lecture or information session. While the presenter is speaking they can share desktop applications and documents. Today, many webinar services offer live streaming options or the ability to record your webinar and publish to YouTube and other service later.
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