Remote control and monitor by a robot and camera over internet?

zoomkat:
Some links of a similar subject, with the bottom web cam showing basic web control.

Thanks for the links. But I still feel confused about the implemation process.
To achieve my goal, I want to create the web interface(for the client to control and monitor), the web server .
Could you tell me how can the web interface control the robot? Is it to communicate with the web server or the Arduino server? How?