If Go to Meeting is too expensive, try Meetings.io

While far from the only Web-based video meeting system, Meetings.io has one of the easiest interfaces to get you talking amongst yourselves. Up to five users can meet at once. Screen sharing is a given, and you can share videos from sites like YouTube and Vimeo. You don't have to sign up to use Meetings.io, but if you do, you can personalize a spot for all future live chats and hangouts