Sequoia backed Tokbox (they are actually working from Sequoia’s offices, just a couple of doors down from where YouTube was incubated), a video chat service that does not require any software downloads, is now allowing up to six simultaneous participants. Skype video, by contrast, only allows two participants, and it requires that all users be using the Skype software.
For now TokBox is only launching this feature via their Meebo integration – this also means all participants can simultaneously text chat during the session as well. SnapYap, a sponsor of our recent Boston meetup, is a competitor to Tokbox (and by the way, see some video footage of the event here).