Watchitoo has created a “Playground” video service that lets you have up to eleven people on a video call at one time for free. You can pay for expanded services.
Unfortunately, all the participants actually have to register on Watchitoo in order to be on the call, as opposed to other services which just require the initiator to be registered, but it’s still a decent service.
I’m adding it to The Best Online Tools For Real-Time Collaboration.
Thanks to Read Write Web and TechCrunch for the tip.