Andrew Bedno's Live WebCam
Live camera and audio stream and text chat, intermittently active for teleconferencing, presentation, and event simulcasting purposes.
Technically this is a "ustream.tv" custom channel. It should require nothing more than Flash. To personalize your name in chat you must create a free ustream.tv account; login there, then try the custom channel there or return here.
TO BROADCAST YOURSELF
Create a free ustream.tv account, login there, create a public custom channel, then click the orange Start Broadcasting button. Even the broadcast UI is Flash based; you will be prompted to permit camera access, and may need to adjust options.
For video conferencing, send your channel's URL through the chat window here.