Similar to Duolinguo being used as a tool to learn languages, LearnMorseCode is a website used to help teach people about Morse Code in a similar fashion. It even has it's own mascot called "ETE".
A short but clear walkthrough to show you how Morse Code works. There are also examples with sound files included to deepen understanding.
A series of questions randomized from a word bank will ask you to translate sentences into Morse Code and vice versa.
Statistics that show the user's total quizzes, correct questions, answers, etc. These stats will remain on the site as long as the user is logged in.
A Login and Registration page that allows the user to access his stats and quiz when logged in.