Does anyone know of an online pinyin dictionary?

If we were to offer beginner lessons in pinyin for Chinese, are there online pinyin dictionaries that we could hook up with? Does anyone know?

http://www.nciku.com/ is pretty good.

It works for unaccented words, numbered accents or regular accents.

Compounds are allowed.

@jeff_lindqvist

I’ve noticed that learning and reference tools for Chinese look, feel and probably are incredibly hi-tech and pleasantly! Here’s just one more example!