The address for this site will change once this transition takes place. I encourage those using commercial packages to validate their HTML - I would be shocked if the code was compliant. The Consortium also provides tools to assure that one's cascading style sheet is compliant. The start-up costs for using CSS are large, however once your style is made, it makes publishing subsequent documents quite easy. It also allows one to change the formatting of all pages in one central location.
Universal accessibility is also an important issue with web published.
Many people with different disabilities use the web to obtain content. This site also contains suggestions on how to improve accessibility. Please feel free to e-mail me with any comments or questions about this website, or any of issues discussed here.