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  1. Added Oct 09, 2008 by carolinemeeks and 1 other
    invites students and professors nationwide to upload their class lecture notes, making them available to anyone with a free Knetwit account. Every time a student's notes are downloaded, they are awarded "Koins," or Knetwit currency. Every "Koin" is equivalent to four cents. When a student reaches the $10 mark, he or she can cash in or buy a product
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