(from Head First jQuery)
- Google Chrome: http://code.google.com/chrome/devtools/docs/overview.html
- Firefox’s Firebug: http://getfirebug.com/wiki/index.php/FAQ
- Safari: http://www.apple.com/safari/features.html#developer
- Internet Explorer 8: http://msdn.microsoft.com/en-us/library/dd565628(v=vs.85).aspx
- Internet Explorer 9: http://msdn.microsoft.com/en-us/ie/aa740478
- Opera’s Dragonfly: http://www.opera.com/dragonfly/