CNET Builder.com - The ultimate information-source for web developers. Covers everything from BTML basics, through to server configuration, database administration and dynamic content delivery.
HOSTconnections - A dynamic directory of the best web hosting packages available.
Templator.net - Commercial provider of professional website templates.
Web Developer's Virtual Library - Jam-packed full of tools and tutorials related to web development. Covers all major protocols, languages, interfaces and techniques, including working with HTML, Javascript, PHP, Perl and databases.
WebMonkey - A resource for web developers and online application programmers of all experience levels.