Good Learning Tool

Good flashcard based system I can learn at my own pace. A few improvements will make of even better:

1. Include usage examples of each word or expression.
2. All category list should list words in alphabetical order instead of by catergory.
3. List related words in each flashcard.
4. Some words are duplicated.
5. More words would be better. I think 4000 words would be great.

leeclw about Learn Japanese - WordPower