American Academy of Orthopaedic Surgeons (AAOS)
The latest source for Legislation, educational, health care policy and research information. The site includes the bylaws and position papers of the AAOS, and the latest federal and state laws enacted that pertain to the practice of orthopedics and medicine.

American Association of Hip & Knee Surgeons (AAHKS)
An information source for latest trends in joint replacement surgery about the hip and knee.

WebMD
Welcome to WebMD Corporation: the leader in providing services that help physicians, consumers, providers and health plans navigate the complexity of the healthcare system.

Arthritis Foundation
The mission of the Arthritis Foundation is to improve lives through leadership in the prevention, control, and cure of arthritis and related diseases. Discusses non-operative means of dealing with arthritis. Gives local resources that are available.

Greater Chicago Chapter of the Arthritis Foundation
The Greater Chicago Chapter of the Arthritis Foundation operates across Greater Chicago, Northwest Indiana and Northwestern Ohio to assist those affected by the disease and provide current information for people with arthritis and their families.

About Stryker
Learn about new joint replacement technologies, the treatment options available to you, and other helpful online tools so you can take back your life.

OrthoIllustrated
An interactive website where patients will find information about the diagnosis and treatment of common Sports Medicine injuries.

Zimmer
Learn about new joint replacement technologies, the treatment options available to you and other helpful online tools, so you can take back your life.