Because the competitive landscape of the web is such that the site which looks and works best gets the most traffic, developers and designers put a premium on the presentation of that content and let structural markup take a back seat.

If I was designing a web site for elementary school children, I might have a much higher percentage of older computers with outdated browsers since keeping up with browser and hardware technology has not traditionally been a strong point of most elementary schools.

For most of the '90s and the first part of this decade, content providers who wanted to publish online only needed to worry about the graphical web browser.

We're rebuilding our Web site at Eclipse.org and we're using PHP,

He admitted he used his computer to access the Web site.

My favorite web site is probably YouTube.