We define a "collaborative telerobot" as a telerobot simultaneously controlled by many participants, where input from each participant is combined to generate a single control stream.Collaborative Telerobotics (CT) is a highly innovative approach to teleimmersion and teleworking. With CT, participants collaborate rather than compete for access to valuable resources such as historical and scientific sites. A scalable infrastructure for CT, compatible with the Internet, would allow large groups of students or researchers to simultaneously