Smokefree.gov
Smokefree.gov is intended to help smokers to quit smoking. The Web site was created by the Tobacco Control Research Branch of the National Cancer Institute, with important contributions from other nationally recognized agencies and organizations such as the Centers for Disease Control and Prevention and the American Cancer Society.

Tobacco Information and Prevention Source
The Centers for Disease Control and Prevention (CDC) presents the Tobacco Information and Prevention Source (TIPS). This Web site is maintained by the CDC's Office on Smoking and Health, which is a division of the National Center for Chronic Disease Prevention and Health Promotion (US Gov't Web site). Information covering tobacco-related issues and statistics.

Smoking Cessation
Resources from the US National Library of Medicine.