the internet. In 2006, M.J. McCue and S.E. Palsbo published an article in the Journal of Telemedicine and Telecare that explored how telemedicine can become a profitable business for hospitals. They argue that telerehabilitation should be expanded so that people with disabilities and people in pain (perhaps after hip-replacement surgery or people with arthritis) can get the rehabilitative therapy they need. It is unethical to limit payments for telerehabilitation services only to patients in rural areas. Research in telerehabilitation is in its infancy, with only a handful of equivalence trials. As of 2006, most peer-reviewed research in telemedicine are case reports of pilot programs or new equipment. Rehabilitation researchers need to conduct many more controlled experiments and present the evidence to clinicians (and payers) that telerehabilitation is clinically effective. The discipline of speech-language pathology is far head of occupational therapy and physical therapy in demonstrating equivalence over various types of telecommunications equipment. Technologies Plain old telephone service (POTS) with videophones/phones in telerehabilitation There are several types of connections used with real time exchanges. Plain old telephone service (POTS) uses standard analog telephone lines. Videophones are used with POTS lines and include a camera, display screen, and telephone. Videophones use telephone lines that are available in most homes, so are easy to set up; however small display screens make them problematic for individuals with vision problems. This can be solved by using a large screen or television as a screen. Videotelephony/Videotelephony in telerehabilitation The use of improved quality video-assisted telecommunication devices, such as videoconferencing, webcams and telepresence to assist in treatments. Virtual reality/Virtual reality in telerehabilitation Virtual reality in telerehabilitation is one of the newest tools available in that area. This computer technology allows the development of three-dimensional virtual environments. Motion technology/Motion technology in telerehabilitation Web-based approaches/Web-based approaches in telerehabilitation Applications that run over the internet, just as if they were installed in your computer (called Rich Internet Applications), represent a new direction in software development. A person subscribes to the website rather than purchase the software. Any updates or changes to the software system are instantly available to all subscribers. The applications can be accessed from any location where one has access to an internet connected computer. Likewise, a patient's data is accessible from where ever the therapist is located. Neither the application nor the patient's data is tied to one computer. Sensors and body monitoring/Sensors and body monitoring in