About.com: ACL Injury
Information about the anterior cruciate ligament injury, one of the most common problems involving the knee joint.
Wikipedia: Anterior Cruciate Ligament Injury
User-edited article about the debilitating musculoskeletal injury more often seen in athletes. Features causes, diagnosis, symptoms, surgical treatment, and online resources about the ACL knee injury.
Anterior Cruciate Ligament Injuries
Hughston Health Alert featuring the anatomy, signs, treatment, and prevention of ACL injuries to the ligament which lies inside the knee joint.
ACL Reconstruction Help Group
Singapore-based support group offers forum and information about causes and treatments of anterior cruciate ligament injuries.