To examine the potential uses of and barriers to text-messaging in secondary schools, three classes (66 students) of high school students used their personal mobile phones to receive out of school, course-related text-messages from teachers. Forty-six students (70%) agreed to receive text-messages. Findings indicate that participants found text-messaging to be beneficial for increasing course-related interaction. Students who did not participate identified the following barriers: no mobile phone, limited or no texting service on their mobiles, and a lack of desire to participate. Further research is necessary in a setting where all students have access in order to more fully explore classroom applications of text-messaging. (Contains 5 tables.)