OR you can pick an IDE :
Internet Explorer 8: Tools->Developer Tools-> 'scripts' tab
FireFox: Tools->Error Console. I recommend firefox users to get Firebug too.
Opera: Menu->Page->Developer Tools->Error console
Safari: ?? Can't find it!
Resources and Libraries
3) Google Maps API
2) Code compressors/minifiers:
YUI Compressor (Here's an online YUI compressor)
3) Found a set of videos here
To achieve faster page loading, read the following (You will find few conflicting opinions ):
Read the HTML5 presentation at html5rocks.com.Note that you will need a HTML5 compatible browser.
This post has been edited by macosxnerd101: 03 November 2010 - 12:40 PM
Reason for edit:: Added PromoteJS Link thanks to BrianArn!