This is also a great article about HOW spaced repetition systems should be used in language acquisition: http://www.hackingchinese.com/if-you-think-spaced-repe

This is also a great article about HOW spaced repetition systems should be used in language acquisition: http://www.hackingchinese.com/if-you-think-spaced-repetition-software-is-a-panacea-you-are-wrong/ http://www.hackingchinese.com/if-you-think-spaced-repetition...