Education

• 
  Google Classroom
  (3 votes, 5.00/5)
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• 
  Coursera: Online courses
  (5 votes, 5.00/5)
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• 
  Duolingo: Learn Languages Free
  (7 votes, 5.00/5)
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• 
  TED
  (10 votes, 5.00/5)
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• 
  Udacity – Lifelong Learning
  (7 votes, 5.00/5)
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• 
  Science Journal
  (8 votes, 5.00/5)
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• 
  Planetarium 2 Zen Odyssey : Wonders of Astronomy
  (11 votes, 5.00/5)
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