http://www.crockford.com/javascript/ http://ajaxian.com/archives/so-you-want-to-write-javascript-...
video lectures: http://freescienceonline.blogspot.com/2007/05/programming-vi... http://www.catonmat.net/blog/learning-javascript-programming...
cheat sheets: http://www.wait-till-i.com/2007/06/27/dom-javascript-cheat-s... http://www.scottklarr.com/topic/95/javascriptajax-cheat-shee...
combined resources: http://ajaxian.com/archives/lets-compile-a-list-of-ajax-dom-... http://www.softwaredeveloper.com/features/quality-ajax-resou... http://www.maxkiesler.com/index.php/weblog/comments/learning... http://fresherswisdom.wisdomplug.com/free-tutorials-collecti... http://www.jasonbartholme.com/70-javascript-resources-for-ev...
development tools: http://www.ibm.com/developerworks/web/library/wa-jstools/?S_...