This an evaluative study of three National Cancer Institute (NCI) smoking cessation resources: specifically, the smokefree.gov and women smokefree.gov websites, and the CIS counseling phone calls. The following are the identified critical questions: (1). How effective is each of the tobacco interventions (websites [smokefree.gov & women smokefree.gov], NCI's Cessation Quitline counseling services operated by the Cancer Information Service (CIS) (2). How do they compare with alternative intervention strategies? (3). Which types of interventions appear to work best together (due to additive or interactive effects)? (4). How do these interventions work? (5). How much are these interventions used, and what are their relative use rates? (6). Are there important differences in effectiveness or use rates as a function of gender, SES, or other important person factors? We believe that the research study will address all of these questions, as well as some less central ones.