[lpnotes]

Nice idea! A couple of suggestions: 1) Make the quizzes shorter than 2 minutes. 2) As avree and bherms suggested, you need an intro. before the sign-up. I'm just an impulsive sign-upper because I like checking out new sites, but I suggested the site to my friend and he just stared at it before getting distracted by something else.

[sashakatsnelson]

That's a good point on the quizzes - we've added logic to choose quizzes that are more reasonable in length (going for 90 seconds for now and we'll see how it affects use).