HippoCampus.org is a free, core academic website that delivers rich, multimedia content—videos, animations, and simulations—on general education subjects. As an open resource for personalized learning, HippoCampus.org was designed to improve access to quality education for everyone, and is powered by The NROC Project (NROC), a nonprofit organization that collaborates with secondary, postsecondary, and adult education leaders to improve student readiness, persistence, and success. NROC makes editorial and engineering investments to maintain HippoCampus.org.