American Academy of Osteopathy
http://www.academyofosteopathy.org/
The Cranial Academy
http://www.cranialacademy.org/
Sutherland Cranial Teaching Foundation
http://www.sctf.com/
Journal of the American Osteopathic Association
http://www.jaoa.org/
American Osteopathic Association
http://www.osteopathic.org/
Osteopathic Physicians and Surgeons of California
http://www.opsc.org/
Best of the Web - Osteopathy
http://botw.org/top/Health/Medicine/Osteopathy/
The Osteopathic Heritage Foundations
http://www.osteopathicheritage.org
Glossary of Osteopathic Terminology from AACOM and ECOP
http://www.aacom.org/resources/bookstore/Pages/glossary.aspx