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the world's largest private holding of important original manuscripts & documents.The archives include Literature, Science, Religion,History and Art. Original manuscripts have text visualizations that enable easy reading

Online tutorials for learning how to use Google Earth plus lesson content for K-12 science, math, social studies and ELA.

1,100 videos on YouTube covering everything from basic arithmetic to chemistry, biology, calculus and economics. 8 million video views and growing. 70,000 students a month watching 35,000 videos a day. Over 2 million minutes of instruction delivered world-wide in the past week. Self-paced teaching software and assessment. The most used, most exhaustive, and richest instruction on the Internet. Mission of providing a world-class education to anyone, anywhere, for free.