Most efficient practice schedule for learning?
pella: From my collections:Review of Mnemosyne vs. Anki vs. SuperMemo
  http://nihongoperapera.com/mnemosyne-anki-review.htmlOpen Source Anki: http://en.wikipedia.org/wiki/AnkiOpen Source Mnemosyne:   
    http://en.wikipedia.org/wiki/Mnemosyne_(software)Some science:
http://en.wikipedia.org/wiki/Forgetting_curvehttp://en.wikipedia.org/wiki/Spaced_repetition-----------------And my favorites for language learning: http://www.smart.fm/