American Academy of Periodontology This is very useful site which provides links to other periodontal/dental sites as well as information regarding the American Board of Periodontology, publications available from the American Academy, etc.)
International Association of Dental Research; American Association of Dental Research In addition to links to other sites, the IADR webpage gives information about upcoming meetings, abstract submission, IADR publications, including the Journal of Dental Research and Critical Reviews in Oral Biology and Medicine)
University of Michigan Dental Library This is a very comprehensive guide to dental resources on the internet and is highly recommended.
University of Iowa, College of Dentistry This is a site containing multiple dental resources on the internet, including links to dental colleges, organizations, listservs, bulletin board services and journals; very comprehensive.
Proctor and Gamble's Dental Resource Site A surprisingly wide range of information, much of which is not product-specific. This site requires a password.
DentalSite Another comprehensive listing of dental resources on the Web.
Online Textbook on Basic Periodontology This online resource is by European periodontists Drs. Rolf Attstrom, Anders Nattestad and Palle Holmstrup.
UCLA Periodontices Information Center The UCLA perio website; very worthwhile site containing a variety of material ranging from case presentations to clinical photographs of surgical procedures.
SDILINE® (Selective Dissemination of Information onLINE) A guide to biomedical databases available through National Library of Medicine.
Eastman Dental Center in London A valuable resource with an online bookstore, course offerings and clinical images.