Universities have long practiced data collection techniques to gain insights and direction from their graduates, but public high schools are just now beginning to use this process to gather input from those who know the system the best--their alumni. Because past students' reflections on their high school education can indicate the level of success of their high schools' programs and practices, principals can use this information to identify areas needing improvement and then develop strategies for improvement. The Poudre School District (PSD) in Fort Collins, Colorado, serves approximately 24,000 students in its 49 schools (at the time of this study). As a means of initiating effective communication between alumni and PSD's five high schools, an online survey was constructed and placed on the Internet using SurveyMonkey.com, an online, commercially available web survey supplier. The findings drawn from the experiences of responding alumni provided insights as to those factors that contribute to the success of high school programs and practices. Principals can use this information to identify areas needing improvement and then develop strategies for school improvement, i.e. student achievement, facilities, and communications with parents and alumni. This article demonstrates how alumni research at the PK-12 school level can be designed and used effectively by school leaders to support policy development and a range of institutional improvements aimed at personalizing the learning environment. (Contains 1 table.)