Andrew Sutherland has created and launched Quizlet, a site for learning vocabulary. Quizlet is a mootools based application, and is subtle in its use of the framework. It gives you tools to study vocabulary words that you enter.

Here's how it works:

1. You enter a vocabulary list of any words or data you want. (ex. SAT words, history dates, French-Spanish translations, etc.)
2. Quizlet gives you a specialized learning mode, flashcards, randomly-generated tests, and collaboration tools for classmates to help you study those words.
3. You ace your test.

Here are some neat features:

1. Quizlet keeps track of the words you know and only retests you on the ones you don't.
2. You can share your word sets with classmates and get email notification when others make sets for you.
3. You can import words from a file without having to retype them into Quizlet.
4. Quizlet has accent buttons for typing letters in foreign languages.
5. You can discuss sets (and gossip about teachers!) with classmates via instant discussion boxes.
6. Quizlet works in any language. If you can type it into your keyboard, you can study it on Quizlet.

Continue for more info....

Quizlet, Mootools, Vocabulary, Learning+Site