We often get asked “are smokers on the Internet different from other smokers?” To answer this question, we compared the characteristics of 5,300 smokers from EX to a national dataset of smokers from the CDC.

The effectiveness of mobile devices in promoting adherence in other areas of health behavior change makes them a promising tool with Internet smoking cessation interventions. This manuscript describes an ongoing study of a novel text message intervention to more effectively engage smokers.

The Internet is often the first place people turn for help when they quit on their own. This study evaluated the effectiveness of an Internet intervention in preventing relapse.

Weight loss. Physical activity. Smoking cessation. Internet interventions of all kinds see a large proportion of “one hit wonders” (people who visit once and never return). This study explored why using data from EX.

Observational studies about the role of e-cigarettes for smoking cessation pose unique methodological challenges. This study showed that different analytic methods can yield different results.

Quitting smoking is one of the most common New Year’s resolutions. But do they stick? Using data from a large randomized trial, this study examined the impact of seasonality among users on EX.

This manuscript describes the study protocol for a 2x2 factorial randomized trial focused on improving engagement and quitting outcomes.

This study was the first evaluation of EX. It showed that higher levels of engagement and use of the EX Community were strong predictors of quitting.

This 2-phase study evaluated culturally tailored online ads designed to recruit Spanish-speaking smokers to EX.