Video Conferencing

Brinckmann & Associates
Develops turn-key applications for video conferencing kiosks, multimedia and web sites.
http://www.brinckmann.com/

eAuditorium by NetDIVE
Java client/server system for scalable web based organized meetings. Controlled communication for distant learning, talk shows, and live auctions.
http://www.netdive.com/indexea.htm

Ekiga
An open-source VoIP and video conferencing application for GNOME. Features, screen-shots, documentation, download, and details of how to contribute to the project.
http://www.ekiga.org/

visionGS
Free webcam software running on most Win32 platforms. Publish images live to the Internet using the ftp protocol or the VisionGS http server with real-time video streaming support.
http://www.visiongs.com