HippoCampus

HippoCampus.org is a free, core academic web site that delivers rich multimedia content–videos, animations, and simulations–on general education subjects to middle-school and high-school teachers and college professors, and their students, free of charge. Teachers project HippoCampus content during classroom learning and assign it for computer labs and homework. Students use the site in the evenings for study and exam prep. Users do not need to register or log in to use the site. 7,000 free videos across 13 subjects.