(I keep having trouble with posting on this forum, so excuse me if I've posted this already!)
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Concerning those in the webmaster biz...

If you are an aspiring experienced webmaster, then you should know about some changes that would be optimum for your site. I'm talking about XHTML. XHTML, or EXtensible Hypertext Markup Language, is looking to replace HTML. So, if you have been using HTML, and want to keep your site clean and updated, you should look into updating your markup.

The W3C, or World Wide Web Consortium*, governs the internet - they act as a sort of security camera and monitor for it. They are also the ones responsible for creating and updating the new markup languages. And while HTML 4.01 is still being used today, XHTML 1.0 has been set to as some point replace HTML.

XHTML comes from a mix of HTML and XML, which is a sort of language dealing with describing date, instead of displaying data, which is the purpose of HTML. You combine the two... and you get a rather powerful, new, markup language. And while both are related, XHTML is a sort of change from the both.

In the two upcoming parts, I will detail the ways necessary to update your website or learn to make a website using XHTML, so that you have a clean, validated site.

For more information on conformance, validation and otherwise, go to the W3C.
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*Consortium: a group or grouping of organizations or otherwise for some common purpose.

(This tutorial is not a beginner's tutorial. If you are a beginner, you should probably refer to another tutorial )

There are so many major websites written in pure HTML that it is hard for me to believe that browsers and other user agents will, within the foreseeable future, no longer be able to correctly interpret and dispaly HTML. What makes you think so?

No, no, you misinterpreted me. I meant that while HTML will soon become outdated, and while maybe in the near future, the W3C will make XHTML the standard, HTML will still be used. I'm not at all saying that, all of a sudden, HTML will no longer work. I'm simply saying that soon, XHTML will become standard, and one would be better off using XHTML or upgrading to it.

And another thing...

It's not at all difficult for a site, even a major commercial site, to upgrade to XHTML.

Thanks for the concern though.

P.S. That's a portion of my tutorial I posted on the first thread at the top. Once it's accepted, everyone should take a look at it, I put some time into it !