I recently came across the following interesting articles on JavaScript Design Patterns:
This article...
http://macwright.org/2012/06/04/the-module-pattern.html
led me here...
'Learning JavaScript Design Patterns' by Addy Osmani
http://addyosmani.com/resources/essentialjsdesignpatterns/book/
and finally, here, for more JavaScript goodness than I can grok:
http://bost.ocks.org/mike/