Professional organizations:

http://www.apta.org (American Physical Therapy Association)

http://www.vpta.org (Virginia Physical Therapy Association)

http://www.sportsmed.org (American Orthopaedic Society for Sports Medicine)

http://www.aaompt.org (American Academy of Orthopaedic Manual Physical Therapists)

http://www.mckenziemdt.org/intAbout.cfm (McKenzie Institute International)

Health related information:

http://www.webmd.com (Web MD)

http://www.content.nejm.org (New England Journal of Medicine)

http://www.physsportsmed.com (Physician and Sportsmedicine Magazine)

http://www.medicinenet.com (Medicine Net)

http://www.nlm.nih.gov (National Library of Medicine)

http://www.mayoclinic.com (Mayo Clinic)