XHTML is more than a buzz word dejour; it is the future markup language of the internet. It won't happen next week, or maybe even next year, but it's coming and you should be thinking about it.

Who? The World Wide Web Consortium (W3C). The W3C develops interoperable technologies (specifications, guidelines, software, and tools) to lead the Web to its full potential. The W3C wrote the Recommendation for XHTML.

What? EXtensible HyperText Markup Language. It is derived from combining HTML with the rules of XML. XML is a markup language where everything has to be marked up correctly, which results in "well-formed" documents. This allows standardization of code, cleaner, reduced amounts of code, and interopperability between systems.

Where? The entire internet. It's just a matter of time.

When? XHTML 1.0 became a W3C Recommendation January 26, 2000. It will probably take years to become a standard, but those who embrace it will reap the reward of reaching a wider audience through the everchanging landscape of internet ready devices.

Why? To create a stricter standard for making web pages, reducing incompatibilities between browsers. To create a standard that can be used on a variety of different devices without changes