If you're okay with paying, John Resig (creator of jQuery) is in the process of writing a great book - "Secrets of the JavaScript Ninja" - which is available as an early access edition here : http://www.manning.com/resig/

I assure you, its worth the money.

Note: I am in no way associated with the publishers or author apart from being a beneficiary of this awesome repository of knowledge. This is not even an affiliate link.