What is BigBlueButton?
BigBlueButton is a web conferencing system designed for online learning. BigBlueButton enables you to share your audio, slides, chat, video, and desktop with students. Built-in polling makes it easy to engage students and recording your lectures means that you can make them available for later review.
BigBlueButton is an open source project, managed by Blindside Networks. For more information check out their website: https://bigbluebutton.org/