Brief interventions are shown to be associated with small but clear increases in smoking cessation in pregnancy, but are rarely used. Technology may fill this void. For the present study, pregnant women reporting smoking during pregnancy will be recruited and randomly assigned to one of eight combinations of three technology-delivered intervention approaches: Brief intervention, Quitline referral, and "SmokeFreeMoms" text messages (http://women.smokefree.gov/smokefreemom.aspx).