There are many resources available on Web usability, design and writing.
Here are our favorite books & resources:
Online Resources
The Yale Web Style Guide - indispensable
www.uie.com User Interface Engineering. Jared Spool, international usability expert.
www.useit.com Jakob Nielsen's usability site
Why Standards Are Necessary
Usability and Clear Communication
Usability.gov
The federal government's guide to plan, analyze, design, test and refine your Web site.
EyeTracking
Uses diagrams and descriptions to show how a users eye travels over a web page. Provides tips on where to locate content from most to least important.
Books
The Elements of User Experience
by Jesse James Garrett
Brand Warfare: 10 Rules for Building the Killer Brand
by David F. D'Alessandro
Information Architecture for the World Wide Web: Designing Large-Scale Web Sites
by Louis Rosenfeld and Peter Morville
The PC is not a Typewriter
by Robin Williams
Style Guides for Text
In Communications at WSDOT we use two style manuals:
We use the AP Stylebook for all text and if they don't have the answer, then we look to the Chicago Manual of Style.