The purpose of this study is to demonstrate the effectiveness of the "Taking Charge: Managing JIA Online" Internet intervention, when compared with an attention (static education only websites) control group in improving pain and HRQL as well as other health outcomes (anxiety, depression, treatment adherence, pain coping, knowledge, and self-efficacy) in adolescents with JIA. The proposed study will enroll and randomize 294 adolescents with JIA attending 10 pediatric rheumatology hospital clinics in the Canada to either the experimental or control groups.