BACKGROUND: Adherence to childhood immunization schedules is a function of various factors. Given the increased use of technology as a strategy to increase immunization coverage- it is important to investigate how parents perceive different forms of communication- including traditional means and text-message reminders. OBJECTIVE: To examine current forms of communication about immunization information- parents' satisfaction levels with these communication modes- perceived barriers and benefits to using text messaging- and the ideal content of text messages for immunization reminders.