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Eric Weisstein's World of Science - comprehensive online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas. GalaxyGoo - collective of scientists with a mission to present mathematical and chemistry experiments online in a dynamic and interactive way.	Jones Encyclopedia of Media & Technology Information - features articles on a variety of topics on the history, innovations, milestones, pioneers, and legal trends that shape the world of media, information technology, telecommunications, and broadband.