ePresence was an open source project maintained by the University of Toronto from 2001 to 2008. It has been forked and commercialized in 2008 by the lab ex-employees as a private enterprise. Please visit http://epresence.tv for further details.
LiveSession is an open source web conferencing solution that enables live multi-way video and audio conferencing, PowerPoint sharing, whiteboard integration, and application sharing. LiveSession is great for live training, collaboration, and interaction.
Edufolio is a web-based LCMS providing Assessment tools, Calendar, Discussion forums, Email, Grading system, User access tracking/monitoring, and more. Flash Media Server for multimedia features such as conferencing, chat and A/V recording.