A List Apart: Web Standards and Tools.
If web development tools like Macromedia’s Dreamweaver, Adobe’s GoLive and Microsoft’s FrontPage (among countless other applications) do not generate standards-compliant code, the work of convincing the browser vendors to support standards will have been wasted. The creation of content will be trapped in a shell - legible only in a handful of browsers, locking out millions worldwide.
Furthermore, web development software vendors are in a unique position to educate their customers about web standards: what standards are, how they work in the context of the web, and how they help make sites more accessible.

