Think Green! ;)

Some great websites with many web design tutorials:

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

W3 Schools
Great site with resources and tutorials on html and many other issues.

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.

HTML tutorials and basics webmaster tutorials:

HTML Goodies
Lots of great tutorials on html and graphics for webmasters.

HTML Dog
HTML and CSS Tutorials, References, Articles and News.

Web Authoring FAQ
Addresses frequently asked questions related to HTML, images, style sheets, and other web authoring issues.

Photoshop tutorials:

Good-Tutorials
A categorized directory of hundreds of Photoshop tutorials. From beginner to advanced.

The Photoshop Roadmap
Photoshop tips, tutorials, techniques and articles. Also a large plugin directory with download links, animated tutorials and a Photoshop bookstore.

Flash tutorials:

Macromedia Flash Support Center
Flash support and tutorials from Macromedia.

Flashgeek
Home of the unholy matrimony of Macromedia Flash and Microsoft Powerpoint. Tutorials, discussions, code, and pointers can be found here.

Flash 99% Good
This site aims to help flash developers create more usable content using examples and tips.

More Tutorials on Web Design, Development & Authoring
Can be found here in this DMOZ directory

Some tutorials on Search Engines here