The perception that Internet plagiarism by university students is on the rise has alarmed college teachers, leading to the adoption of electronic plagiarism checkers, among other responses. Although some recent studies suggest that estimates of online plagiarism may be exaggerated, cause for concern remains. This article reviews quantitative studies of student plagiarism over the past forty years, as well as academe's generally weak response. It also offers strategies for addressing cyber-plagiarism and argues that faculty should act as educators, rather than as detectives.