What Are Web Standards and Why Should I Use Them?
http://www.webstandards.org/learn/faq/

Web Standards Project
2009

Abstract:

Standards have so much to offer that we at The Web Standards Project (WaSP) consider it necessary to help you learn more about them. This document is merely a starting point; it will give you a solid understanding of what standards exist, why they do, and why you should care about them. Every time we create a piece of the Web, we contribute to the common information space that is the Web. We can build it up, or we can add weight that will tear it apart. The choice belongs to us; the consequences belong to everyone.