Web Directory of Favourites.
World Wide Web Consortium
The guvnors. HTML Validator
A list apart
Standards based web design.
iFingers Web Designer
My London based web design outfit.
Eric Meyer CSS guru
Eric Meyer is the definitive css author.
Webmaster World
WebmasterWorld News and Discussion for the Independent Web Professional
BBEdit
The best html editor.
phpBB
Build a community.
Google Webmasters
Information for Google Webmasters.