QuitNet
Helps smokers kick their nicotine addiction, providing tools, information, and support for people quitting smoking, including message boards, chat rooms, interactive questionnaires, and personalized quitting suggestions. http://www.quitnet.org/
Quit Victoria
"Tobacco smoking is the single most important cause of ill health and premature death in Australia." Not just quitting information -- health questions answered; effects of cigarettes; quit evaluation studies; information in languages other than English; smokefree workplaces and dining. http://www.quit.org.au/