The Official HTML 4.01 Specification (from the W3C Web Site and continuously updated)
http://www.w3.org/TR/html401/
Index of Elements - alphabetically by element name (also links to full explanations of each element)
http://www.w3.org/TR/html4/index/elements.html
Index of Attributes -alphabetically by attribute name (also links to full explanations of each attribute)
http://www.w3.org/TR/html4/index/attributes.html
Detailed documentation on HTML tables
http://www.w3.org/TR/html401/struct/tables.html
Detailed documentation on HTML forms
http://www.w3.org/TR/html401/interact/forms.html
The W3C’s Web Accessibility Initiative (WAI) Site
http://www.w3.org/WAI
The NYS Work Group on Access to Information Technology site:
http://web.nysed.gov/cio/access/access.html
From the Hotwired Webmonkey Site (http://www.hotwired.com/webmonkey/):
Browser Feature Chart
http://www.hotwired.com/webmonkey/reference/browser_chart/
Stylesheets Guide
http://www.hotwired.com/webmonkey/reference/stylesheet_guide/
“The Web Isn’t for Everyone ... Yet”
http://www.hotwired.com/webmonkey/design/site_building/tutorials/tutorial5.html/
Bobby - One of the premier accessibility validation tools
http://www.cast.org/bobby
Lynxview - Converts everything on screen to text, which approximates a screen reader’s output
http://www.delorie.com/web/lynxview.html
“The Growing Digital Divide In Access for People With Disabilities: Overcoming Barriers to Participation,” Cynthia D. Waddell, J. D.
http://www.aasa.dshs.wa.gov/access/waddell.htm
Web Review’s Browser Compatibility References (Main Page) - includes a CSS Master Compatibility Chart
http://www.webreview.com/pub/guides/style/style.html
Web Monkey’s Authoring Reference Page
http://hotwired.lycos.com/webmonkey/authoring/
Jakob Neilsen’s Alertbox Site - a good resource for ideas on how to design more usable web sites
http://www.useit.com
Microsoft’s Accessibility Site
http://www.microsoft.com/enable/
US Dept. of Education’s “Requirements for Accessible Software Design” - consider when designing sites which incorporate forms or other applications into web pages
http://gcs.ed.gov/coninfo/clibrary/software.htm
HTML Writer’s Guild AWARE (Accessible Web Authoring Resources and Education) Center
(Note: The HWG site contains local copies of WAI documents; it’s unknown how often these local copies are refreshed. For the latest guidance on the WAI guidelines, it’s probably a good idea to go directly to the source.)
http://aware.hwg.org/
Adaptive Technology for the Internet: Making Electronic Resources Accessible to All by Barbara T. Mates (the online version) on the American Library Association’s web site
http://www.ala.org/editions/openstacks/insidethecovers/mates/mates_toc.html
Usable web: 1124 links about usability (Note: number changes as links are added)
http://usableweb.com/index.html