IDEs:
http://www.activestate.com/komodo-edit
http://www.jetbrains.com/idea/
http://www.aptana.com/
Libraries/Frameworks:
http://processingjs.org/
http://bit.ly/canvask3d
http://jcscript.com/
http://www.raphaeljs.com/
http://www.shapevent.com/scaleraphael/
http://code.google.com/closure/
http://jquery.com/
JSLint:
http://www.jslint.com/
http://community.activestate.com/xpi/kojslint
Minifiers/unminifiers:
http://jscompress.com/
http://closure-compiler.appspot.com/home
http://ajaxmin.codeplex.com
http://yuilibrary.com/downloads/#yuicompressor
http://jsbeautifier.org/
Books:
http://www.amazon.com/gp/product/0596517742?ie=UTF8&tag=bit101-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0596517742
http://www.amazon.com/gp/product/0596806752?ie=UTF8&tag=bit101-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0596806752
http://www.amazon.com/gp/product/1449396801?ie=UTF8&tag=bit101-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=1449396801
Misc:
http://www.dafishinsea.com/blog/2010/08/15/166/
http://physicsketch.appspot.com/
http://code.google.com/p/explorercanvas/wiki/Instructions
http://paulirish.com/2011/requestanimationframe-for-smart-animating/
http://yuiblog.com/crockford/