For the AIBO project we needed to stream webcam data from a webcam to an iframe on our website. We used an Axis IP camera but as soon as we had more than 2 people viewing the built in server crashed and the camera needed restarting. Although this problem didn’t happen every time, it happened enough that we decided to go with a webcam and SimpleCam from Dead Pirate Software, which I have used before.
The setup is easy, just make sure your webcam is installed, run SimpleCam and make sure the server port is set. To view the feed just visit the ip and port of the pc with the webcam attached. There are more instructions with pictures on the Dead Pirate site.