Colleagues, If you are considering organizing a hackathon, please check out our hackathon planning kit: https://hackathon-planning-kit.org/ Based on four years of researching and hosting a wide variety of hackathons, we have distilled the key decisions and tradeoffs to help everyone design an event that will help achieve your specific aims, whether you are looking for innovation, fostering learning, leveraging data sets, building a community, or just having fun. Best, Jim --- James Herbsleb Director, Institute for Software Research Professor, School of Computer Science Carnegie Mellon University https://herbsleb.org/