National Eye Institute of the National Institutes of Health
Merck Medicus
MD Consult: Clinical Information for Physicians
American Medical Association
American Society of Cataract & Refractive Surgery / American Society of Ophthalmic Administrators
Phacopearls.com
American Academy of Ophthalmology
American Medical Association - Archives of Ophthalmology
ePocrates, Inc. ePocrates Rx™ clinical drug database for the Palm
MedPoint Office of Medical Education
AMA - EyeNet
Eye Surgery Education Council
OSN Supersite
Pennsylvania Medical Society
Ophthalmology Times
Entrez-PubMed