Think Green! ;)

Some great webmaster resource sites:

WebReference
News, tutorials, tools, and software downloads for web authoring.

W3 Schools
Great site with resources and tutorials

Web Developer's Virtual Library
News, tutorials, and reference material focusing on technical web development topics.

DevShed
Includes HTML tools, free tutorials, development software, shareware and freeware downloads.

Dan's Web Tips
Detailed explanations of topics including browsers, markup, servers, and search engines.

BigNoseBird.com
Tutorials, reference materials, free scripts and resources.

Dynamic Drive
DHTML Comprehensive information featuring scripts and tutorials.

Hotscripts
Large  PHP, CGI, Perl, JavaScript and ASP script collection and resource web portal

Some great Webmaster Forums to stay on top of what's going on:

Webmaster World
Huge website of great quality with tons of forums for webmasters from search engines to many other topics.

Mainstream Webmasters
Forum and resources for for mainstream webmasters

WebWorldPro
Great forums covering search engines, marketing, site design, e-commerce and more>

Search Engine Forums
Covering the main search engines as well as also marketing and e-commerce besides other topics

High Rankings
High Rankings search engine optimization forum

SEO Chat
Search engine optimization forums covering most Search engines and directories and related topics.

Here are some Free tools for webmasters:

Htaccess Disable Hotlinking Code Generator
If people are 'hotlinking' to your image files, they are using your bandwidth which you will ultimately pay for.

Password Protection Code Generator
Password protect folders using htaccess. Users will need to enter their username and password to gain access to the folder.

Email Form Submission Generator
You can use this generator to create the entire form for your email form including all fields, or skip the 'form items' section and just fill out the 'submit properties' to retrieve the code used for emailing forms.

Stylesheet Code Generator
Use CSS to set your font/colour values for your website.

Javascript Banner Rotator Generator
This script lets you generate code online to roate banners on your web pages.

Bookmark Code Generator
Create a 'bookmark this page' link.

Email Riddler
Email Riddler is an online tool that encrypts and transform your email address into a series of numbers when displaying it on your web site, making it impossible for spammers to harvest it from your site.

Web Site Test Tools and Site Management Tools
More than 290 tools listed in 12 categories

Golexa
Search Tool with complete page analysis for each result

onMouseover Link Effects
Description: A CSS script that changes the appearance of links in a document upon mouse over.

Popup Window Generator
Popup window Generator to easily add popup windows to your site.

More Cool Webmaster Tools here from HTML Basix

and here from Dynamic Drive
 

Here are some Free tools for graphics:

UnFREEz Gif Animator
This portable program is a good pick if you find creating animated GIFs too fiddly and time-intensive.

Htaccess Disable Hotlinking Code Generator
If people are 'hotlinking' to your image files, they are using your bandwidth which you will ultimately pay for.

Image Optimizer
Use this tool to easily optimize regular gifs, animated gifs, jpgs, and pngs, so they load as fast as possible. Furthermore, convert from one image type to another.

FavIcon Generator
Generate a favicon using any regular image with this tool.

Cursor Images
Use a cool image for your cursor on your webpage.

Multimedia Filters on Image Wizard
Description: IE 4 and above support cool visual controls called filters, which are built-in multimedia effects you can instantly apply to your page images (among other elements). There are 15 filters in all, everything from making an image wavy to giving it a glow. And since these controls are all enabled through CSS, browsers that don't support them simply ignore em'.

Site Logo Script
Site logo script that displays a static logo at any corner of the screen. The logo itself is clickable.

3DTextMaker
It's an online 3D text banner creation tool

Cool Text
Its an online graphics generator for web pages and anywhere else you might need an impressive logo without a lot of work.