Nicotine Anonymous

Nicotine Anonymous self-help support group uses a 12 step program adapted from Alcoholics Anonymous for people who want to stop smoking and end their addiction to tobacco. They accept members who have quit cold turkey or with nicotine replacement therapies (NRT's). Their aim is to support people who are looking for support to stop smoking.
Nicotine Anonymous World Services
419 Main Street
PMB Number 370
Huntington Beach, CA 92648
(415) 750-0328
http://nicotine-anonymous.org

Smart Recovery

SMART Recovery is the leading self-empowering addiction recovery support group. SMART Recovery helps people recover from all types of addiction and addictive behaviors. They teach self-empowerment and self-reliance. 
http://www.smartrecovery.org/

Centers for Disease Control and Prevention (CDC) Office on Smoking and Health

Mail Stop K-50
4770 Buford Highway, NE
Atlanta, GA 30341
(800) 311-3435 (toll-free)
http://www.cdc.gov

QuitNet

QuitNet maintains the largest database of local stop smoking programs (U.S. only right now). If we have your zip code on record, we'll show you which ones are closest to you.
http://www.quitnet.com/library/programs/

Freedom from smoking online

The American Lung Association operates almost 200 offices in the U.S. that offer information and resources about stopping smoking. Just visit the site and enter your ZIP code to locate the office nearest you.
http://www.lungusa.org/