XHTML (Extensible Hypertext Markup Language) is a clean, powerful, and reliable language used for programming websites.  It's actually a hybrid of HTML and XML (see descriptions below), designed to work with both older and newer ways of viewing the Internet.  XHTML can be used to build reliable websites with links, text, and images in the format you desire.  Once you know XHTML, you will understand how and why most websites looks the way they do, and you'll be able to customize your own website.  Best of all, XHTML is easy to learn .  If you can spend just an afternoon with this tutorial, you'll have a basic website built by dinnertime. What is HTML?  Why Not Learn That? HTML (Hypertext Markup Language) is widely known as the language for displaying content in websites.  Unfortunately, it has its drawbacks.  The language does not have strict rules for how to program a website, making it easy to build webpages with sloppy code. While this is fine for most web browsers, it causes problems with cell phones, PDAs, XML readers, and other new technology that can access the Internet. XHTML is almost identical to HTML, except that it follows stricter rules.  Many HTML programmers are now learning XHTML so that their websites can be stable in the new generations of technology