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]
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]

The term "webcast" derives from its original similarity to a radio or television broadcast. Early usage referred purely to transmission and consumption of streaming audio and video via the World Wide Web. Over time, webcast software vendors have added many of the same functional capabilities found in webinar software, blurring the distinction between the two terms. Webcasts are now likely to allow audience response to polls, text communication with presenters or other audience members, and other two-way communications that complement the consumption of the streamed audio/video content.
Let’s face it. Your audience has been conditioned to think “show me the money” by all the scams, gimmicks and otherwise sketchy products out there (and if not that, through Jerry McGuire movie quips for sure). If attendees still haven’t purchased anything several days after your webinar, they are probably thinking, “Your product sounds great, but show me real results from real people like me.”
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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