Face Flow - Free live video chat and video conferencing, with up to 4 people
Elluminate - eLearning and Collaboration Solutions
Mikogo - Free screen sharing for people and businesses
MailVU - a free easy way to send private video emails to family, friends, and business associates.
Big Marker is a free service for conducting online conferences. Private or public conference rooms you can share screens, a whiteboard, chat via text, chat via audio, or turn on your webcam so that people can see and hear you.