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A free world-class education for anyone anywhere.

The Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.

All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology. The Khan Academy's materials and resources are available to you completely free of charge.


       About:
Academic Earth is a website launched March 24, 2009, by Richard Ludlow and co-founders Chris Bruner and Liam Pisano,^[1][2] which offers free online video lectures from universities such as UC Berkeley, UCLA, University of Michigan, Harvard, MIT, Princeton, Stanford, and Yale^[3] in the subjects of Astronomy, Biology, Chemistry, Computer Science, Economics, Engineering, English, Entrepreneurship, History, Law, Mathematics,Medicine, Philosophy, Physics, Political Science, Psychology, Religion, and Statistics.