Yellow Bridge Dictionary

Picture copid from the original webpage:
http://www.yellowbridge.com/chinese/wordsearch.php?searchMode=C&word=%E5%90%83&cache=1

This Chinese-English(Pinyin Chinese) Dictionary is piece of art. They give you related words, sentence examples, etymology, and stroke order, you can switch between Traditional Chinese and Simplified Chinese and listen to the pronunciation. They even give you the proficiency test level for the word that you're looking for, but pity that they haven't changed TOP into TOCFL level.

Still it's an useful tool for both teachers and students.