I presented GnomeMeeting and gave an overview of the H.323 protocol at FOSDEM in february, and at GUADEC in Seville last week. The talks are now uploaded on Basically, the GUADEC talk is a revision and an improvement over the FOSDEM talk. It is however a nice overview of what GnomeMeeting is able to do, what is a gatekeeper, and so on... Pictures of both events are available here. Enjoy!