These program allow hosting or attending a live Web group conference:
- large number of viewers
- live feedback
- several speakers/presenters who can share their screen
- allow others to draw on that screen or edit the document
There are many more options such as Talky, etc. Here are some of the most popular web conferencing methods that work for Linux / MacOS / Windows / Android and that I have used more than once.
YouTube, Facebook and Periscope enable very high quality live streaming HD broadcasts via an API that requires just a bit of reasonable technical knowledge to accomplish. Google Hangouts only requires a web browser and plugin (or mobile app)–thus Hangouts is a little simpler to get started and has historically been the free business-grade choice.
According to GlobalWebIndex, 82% of Web users visit YouTube at least monthly. YouTube Live is free for live events with live user feedback and multiple speakers. YouTube Live is easy to stream using FFmpeg, without bulky complicated programs. Since March 2018, YouTube Live streaming is also possible directly from the web browser.
Google Hangouts On Air with YouTube Live free broadcast solution can share your desktop, allow multiple speakers, allow speakers to draw over another’s shared desktop or canvas. Users can comment in realtime to the speakers. The Live Event can be public or private for invited users only.
YouTube Live allows more control over video quality, while Hangouts on Air allows multiple presenters instead of just one presenter as with YouTube Live.
Unlike the standard Periscope app, Periscope Producer can broadcast from mobile AND desktop/hardware devices. Periscope can be viewed from mobile and desktop devices. Using Periscope Producer, screensharing is also possible.
The Facebook Graph API makes it possible to live stream broadcast from a laptop. You can use FFmpeg to stream to Facebook Live from the desktop/laptop. Facebook Live is growing in appeal since so many are on Facebook.
If you want the audience/group to be able to respond with their own video/audio, these methods are up for consideration.
Zoom currently allows up to 100 participants up to 40 minutes for free. Of course, paid plans have unlimited time with more participants. The Zoom client is available for many platforms, or can be used directly from the web browser. The Zoom Linux client also works well.
GoToMeeting allows meetings of 3 participants for free. 100 or more participants are possible with paid plans. HTML5 GoToMeeting in the Google Chrome browser on Linux, BSD, Mac, Windows, etc. works quite well.
Google Hangouts Meet is not free, but since so many workplaces use G Suite, it may be available for your work use without additional cost to your department within participant limits. Google Hangouts Meet has HTML5 based screen sharing / video group calls. Phone dialout/dialin is also provided.
- G Suite Enterprise: up to 100 participants
- other G Suite (e.g. Education): up to 50 participants
Discord can be used from an HTML5 browser, and allows thousands of simultaneous many-to-many voice and text chat users. Up to 9 speakers can share video/screen and audio as well.
Discord is well known for benefits including:
- free to use
- very low latency, HD voice
- voice activation or push-to-talk
- many-to-many allows interrupting without pause/break
Skype for Business limits group calls to 250 participants, but is not free.
AdobeConnect is HTML5 based and does NOT require Flash player. AdobeConnect is limited to 25 users in a Meeting, more with higher-tier licenses or 600 users in Seminars.
http://www.globalwebindex.net/blog/what-to-know-about-youtube-on-its-10th-anniversary(link went down)