The Web Developers Virtual Library This is a well organized list of resources for HTML authors and Web developers. Many mirror sites make fast access to this information very easy.
BUILDER.com A large News and Resource site backed by CNET. Aside from the vast collection of web resources, there are numerous articles posted weekly on current hot topics for web developers.
The CGI Resource Index If you're looking for free CGI information or programs to spice up your web site, this is the best place to start. While the site is a product of Matt's Script Archive, it provides an unbiased listing of programs, books, documentation and more.
http://devedge.netscape.com/ Netscape's site for documentation on Javascript, DHTML, LiveConnect and other technologies that are incorporated in their popular browser. This site is vast, and has much of the information you need for using the advanced features of Netscape browsers, but beware of the incompatibilities with other browsers..
HTML Goodies Lots of essential links for the beginner and professional alike.
Webmaster's Reference Library This repository of information contains a large number of links to high quality information sources. It boasts hundreds of carefully selected and annotated web sites plus original articles