This is a small list of my preferred web resources (tools, database, functions, classes, libraries) that I use to design web sites.
Mootools
Object-Oriented JavaScript framework designed for the intermediate to advanced JavaScript developer.
http://www.mootools.net
Adobe Kuler
Create, explore and share color themes for your web site.
http://kuler.adobe.com/
WAMP
Install Apache, PHP and MysQL with few clicks usder Windows Os.
http://www.wampserver.com
Firebug
It is very nice Firefox Addon. I use to debug javascript.
http://getfirebug.com
PHP Classes Repository
A repository full of freely available programming classes of objects written in PHP
http://www.phpclasses.org
Statcounter
A free yet reliable invisible web tracker, highly configurable hit counter and real-time detailed web stats.
http://www.statcounter.com
Dreamweaver
The professional abobe product and web development tool.
http://adobe.com
MySQL
The most popular open source database
http://www.mysql.com
Rating: 4.5
Reviewer: Unknown
ItemReviewed: Best Resources For Webmasters