American Association of Orthodontists

AAO Affiliated Organizations:
American Association of Orthodontists Foundation (AAOF)

AAO Constituent Organizations:
Great Lakes Association of Orthodontists (AAO members only)
Ontario Association of Orthodontists
Middle Atlantic Society of Orthodontists (AAO members only)
Midwestern Society of Orthodontists (AAO members only)
Northeastern Society of Orthodontists (AAO members only)
Pacific Coast Society of Orthodontists
California Association of Orthodontists
Southern Association of Orthodontists
Southwestern Society of Orthodontists (AAO members only)
American Board of Orthodontics (ABO)
The American Journal of Orthodontics and Dentofacial Orthopedics
World Federation of Orthodontists

Regional, National & International Orthodontic Organizations:
Australian Society of Orthodontists
British Orthodontics Society (BOS)
Canadian Association of Orthodontists
Egyptian Orthodontic Society
Sociedad Argentina de Ortodoncia

Orthodontic Journals 
American Journal of Orthodontics and Dentofacial Orthopedics
Clinical Impressions
Journal of Clinical Orthodontics
Journal of Orthodontics (former British Journal of Orthodontics)
Orthoforum - The Electronic Journal of Orthodontics
The Angle Orthodontist
The European Journal of Orthodontics
The Orthodontic CYBERjournal
Virtual Journal of Clinical Orthodontics

Orthodontic Organizations, Study Clubs & Groups:
Bolton Brush Growth Study Center
Electronic Study Club for Orthodontics
The Angle Orthodontist
The Orthodontic Cyber Journal
Charles Tweed Foundation
Virtual Journal of Orthodontics

Dental Education:

United States
Baylor College of Dentistry, A Member of The Texas A&M University System
Boston University, Goldman School of Dental Medicine
Case Western Reserve University School of Dentistry
Children's National Medical Center
Columbia University School of Dental and Oral Surgery
Creighton University School of Dentistry
Harvard School of Dental Medicine
Howard University College of Dentistry
Indiana University School of Dentistry
Loma Linda University School of Dentistry
Louisiana State University School of Dentistry
Marquette University School of Dentistry
Medical College of Georgia School of Dentistry
Medical University of South Carolina College of Dental Medicine
Meharry Medical College School of Dentistry
New York University Kriser Dental Center
Northwestern University Dental School
Northwestern University Health Web Dentistry
Nova Southeastern University College of Dentistry
Ohio State University College of Dentistry
Oregon Health Sciences University School of Dentistry
Southern Illinois University School of Dental Medicine
State University of New York at Buffalo School of Dental Medicine
State University of New York at Stony Brook School of Dental Medicine
Temple University School of Dentistry
Tufts University School of Dental Medicine
University of Alabama School of Dentistry
University of California, Los Angeles School of Dentistry
University of California, San Francisco School of Dentistry
University of Colorado School of Dentistry
University of Connecticut School of Dental Medicine
University of Detroit Mercy School of Dentistry
University of Florida College of Dentistry
University of Illinois at Chicago College of Dentistry
University of Illinois at Chicago/Orthodontics
University of Iowa College of Dentistry
University of Kentucky College of Dentistry
University of Louisville School of Dentistry
University of Maryland, Baltimore, College of Dental Surgery
University of Michigan School of Dentistry
University of Minnesota School of Dentistry
University of Mississippi School of Dentistry
University of Missouri-Kansas City School of Dentistry
University of Medicine and Dentistry of New Jersey, New Jersey Dental School
University of Nebraska Medical Center, College of Dentistry
University of North Carolina at Chapel Hill School of Dentistry
University of North Carolina at Chapel Hill School of Dentistry, Department of Orthodontics
University of Oklahoma College of Dentistry
University of the Pacific - Arthur A. Dugoni School of Dentistry
University of Pennsylvania School of Dental Medicine
University of Pittsburgh School of Dental Medicine
University of Puerto Rico, School of Dentistry
University of Southern California School of Dentistry
University of Tennessee College of Dentistry
University of Texas Health Science Center at Houston Dental School
University of Texas Health Science Center at San Antonio Dental School
University of Washington School of Dentistry
University of Washington at Seattle/Orthodontics
Vanderbilt Orthodontic Center
Virginia Commonwealth University School of Dentistry
West Virginia University School of Dentistry
Virginia Commonwealth University Department of Orthodontics

Canada
Dalhousie University Faculty of Dentistry 
McGill University Faculty of Dentistry
University of Alberta Department of Oral Health Sciences, Faculty of Medicine
University of British Columbia Faculty of Dentistry
University Laval Faculty of Dentistry
University of Manitoba Faculty of Dentistry
University of Montreal Faculty of Dentistry
University of Saskatchewan College of Dentistry
University of Toronto Faculty of Dentistry
University of Western Ontario Faculty of Medicine and Dentistry

Orthodontic Libraries
Harvard University's Francis A. Countway Library of Medicine
Harvard University Biosciences
Waldmann Dental Library

Dental Organizations:
Academy of General Dentistry
American Cleft Palate-Craniofacial Association
American College of Prosthodontists
American Dental Association
American Dental Hygienists' Association
American Academy of Pediatric Dentistry
American Academy of Periodontology
American Dental Education Association
American Association of Oral and Maxillofacial Surgeons
FDI World Dental Federation
International and American Associations for Dental Research
National Institute of Dental Research

Dental Sites, Study Groups, Links:
Dentist Guide to the Internet
Electronic Discussion Groups in Dentistry
MedWeb: Dentistry
New Dentistry Guide
Oral Health America
The Virtual Dental Center

Medical and Health:
 

American College of Physicians (ACP)
American Medical Association
Center for Disease Control
Internet Grateful Med (MEDLINE search capability)
National Institutes of Health
Sanford-Brown Institute - Tampa, FL (Offers programs in healthcare fields including Diagnostic Medical Sonography, Medical & Dental Assistant and others).

WebMD

Government and Business:
AT&T Toll Free 800 Directory
Doctor's Guide to the Internet
IBM Intellectual Property Network
Library of Congress
National Guideline Clearinghouse (NGC)