Summary of Research Methodology and Procedures: Usability Testing: Five separate usability tests were conducted for the CTI smoking cessation program using a combination of the Think Aloud protocol and Wizard of Oz approach. Usability testing software was used to take notes and record participant interactions with the program. Participants provided qualitative and quantitative feedback on overall presentation and usability of the program. All interview data were coded, categorized, and summarized in a feedback report so that revisions to the system could be adapted. Pilot Study: At all three timepoints, participants completed a brief Health Risk Intervention (HRI), two additional smoking assessments, and the smoking cessation (SC) intervention. The HRI assessment determined baseline readiness to change for smoking and several other related health behaviors, and the smoking cessation intervention provided assessment and feedback about participants' confidence to quit smoking, decisional balance, and use of various change strategies. Following the baseline HRI and SC intervention, the CTI system randomized participants into either the treatment group (Tx), who also received the CTI only, or the treatment-plus group (Tx-plus), who received the CTI and tailored text messages. The study was conducted as entirely anonymous. All participants were given three months' access to the web-based CTI system. The Tx participants received only the online feedback narratives/report that all participants received upon completion of the online Smoking Cessation intervention. Tx-plus participants also received individualized text messages on their cell phones 2-5 times per week (the number of messages correlated with the participant's stage of change) that provide expert guidance, encouragement, and reminders that support their smoking cessation efforts.