Your imagination, my dear fellow, is worth more than you imagine.

-Louis Aragon

• Evaluation, Repair, and Transformation Tools for Web Content Accessibility http://www.w3.org/WAI/ER/existingtools.html
  
• NetMechanic a free online service. Our robot will search your Web site and find broken links, spot bad HTML tags, and rate your server's response time. www.netmechanic.com/
• HTML validation tools
  There are a number of validation tools that can be used to check the syntax and completeness of HTML documents. www.ford-mason.co.uk/resources/stw/node114.html
• WebReference.com ... Collections. AnyBrowser.com Site filled with HTML validation and optimization tools and links. HTML Validation Links DMOZ.org's list of links. ... http://www.webreference.com/authoring/languages/html/validation.html
• DailyDots - Daily Web Design Resource Daily web design news, articles, resources, tools, and tips. Here's a handy listing of HTML Validation Tools. www.dreamink.com/dots/resources/050300-html-validation-tools.shtml
• Forms Validation - Check Forms - JavaScript Validation Advertisement. Forms Validation - Tools to Check Forms Guide picks. Validating HTML forms is a usability issue
  webdesign.about.com/cs/formsvalidation
• Craig Cecil--Tools to Check Your Site ... Check Your Site. Use these tools to quickly check the pages of your site for valid markup, accessibility, usability, browser compatibility, spell checking, etc. www.craigcecil.com/checkyoursite.htm
  
• WAP/WML Test Tools ... WML Testing, Monitoring and Validation Tools. Welcome to our new listing of WAP and WML testing, verification and validation tools. www.palowireless.com/wap/testtools.asp
• WML Testing, Monitoring and Validation Tools http://www.gelon.net/about/wapalizer.html
  
• Downloadable validation tools www.webprowire.com/summaries/575972.html