JetWebinar - JetWebinar is a real-time live and simulated live webinar hosting platform.
Mutify - Use a shortcut on any Mac device to mute your microphone
Muzzle - Silence embarrassing notifications while screensharing
MuteTab - Better tab muting in Chrome
FreeConference.com - A complete conference call and online meeting solution in the palm of your hand. Free Conference.com mobile conference app has all the features you need.
Smart Tab Mute - Ensures that only one tab is playing sound at the same time