Roche Letter to Consumers About the Discontinued Sales of Accutane [PDF]
Official site, from Accutane manufacturer Hoffmann-La Roche Inc.

Accutane Information Page
U.S. Food and Drug Administration

American Academy of Dermatology 
Official site

MEDLINEplus Page on Acne
Information from the U.S. National Library Of Medicine and the National Institutes Of Health.

The Official Isotretinoin Site 
Contains product information, links, and many other references.

Quick Reference and Fact Sheet on Accutane and Other Retinoids 
From the March of Dimes Birth Defects Foundation.

The U.S. Food and Drug Administration (FDA)
Official site.

Acne Overview 
From the American Academy of Family Physicians.