BigBlueButton is an open source web conferencing system for on-line learning. BigBlueButton enables you to share documents (PDF and any office document), webcams, chat, audio and your desktop. It can also record sessions for later playback. BigBlueButton is an open source web conferencing system for on-line learning. BigBlueButton enables you to share documents (PDF and any office document), webcams, chat, audio and your desktop. It can also record sessions for later playback. bigbluebutton.organd 3 more links
