TokBox provides free web browser based video chat. To initiate a session, you need to register, but a nice feature is that registration is not required for anyone else to video chat with you. It works through your web browser, so you don’t need to download anything to your computer. It can also be embedded on a page.
Via TechCrunch
[...] Education/Technology – timlauer.org – TokBox Web Browser Based Video Conferencing Annotated [...]