Yale Style Manual -- Table of Contents
A good example of a detailed web design manual to keep visitors coming back.

Web Page Design -- Introduction
Web design from the perspective of typography and graphics to keep visitors happy; no HTML.

Features -- how-to elements of web design
CNET's elements of good web design to help in your web page design.

SmartWebby
This site provide some essential web design tips that every web site should follow.

Lynda.com
provides materials for Web professionals, including videos, books, CD-ROMs, tips, and discussion boards. Also offers hands-on classes at the Ojai Digital Arts Center.

Photoshop Cafe
Photoshop tutorials, award winning original photoshop Tips tricks and photoshop tutorials for adobe photoshop CS2 incredible photorealistic illustrations updated every week This is one of the top photoshop sites on the web