If you were following for awhile I must have put you to sleep with the lack of action! The very best of luck to your project. I agree about the problems with t

If you were following for awhile I must have put you to sleep with the lack of action! The very best of luck to your project. I agree about the problems with text-entry verification. Obviously with multi-line and/or formatted cards (some sort of lightweight markup language) there are further problems. Grading on a scale is an option - whether manually (I was correct/I was wrong or I kinda got it!) or by robo-grading. I was thinking something along the lines of: "Congratulations human, you are 89.3091001% correct". There is software that allows you to rate your level of understanding between 1-5 and assigns the next spaced repetition on a sliding scale. Yes, I think about it a lot too and haven't wanted to rush to implement a half baked version. In the end I trust the user. If you put a lot of effort into entering cards on a website (or onto actual cards) you generally won't cheat yourself. Removing the pain of managing the spaced repetition is where I find the real value. I used to have a Leitner Cardbox made of a shoe box and strips of cardboard. I was never using it completely accurately of course and then when my GF found it hidden away, a spider was making a nice place to hatch her eggs. That was the end of the Cardbox.