Site Compatibility and IE8
Kelson writes "As the release of Internet Explorer 8 approaches, Microsoft's IE Team has published a list of differences between IE7 and IE8, and how to fix code so that it will work on both. Most of the page focuses on IE8 Standards mode, but it also turns out that IE7 compatibility mode isn't quite the same as IE7 itself."
And at the bottom of your web page, instead of having some non-sense such as "This page best viewed with IEx", have something that says, "Page best viewed with standards compliant browsers, such as X,Y, and Z".
I haven't ever seen a fast Java applet
This is a temporary problem. As computers get faster, this problem will go away.
This accomplishes two things: one, it shows that their browser isn't that good, and two, it shows other browsers are available and lastly, it doesn't just throw those folks out - otherwise, they'll just move on; unless you're the coder for the Wall Street Journal or some other website where the viewers are captive.
HTML rendering is actually pretty consistent among standards compliant browsers (Firefox, Safari, Chrome & Opera). The problem is that the largest browser vendor by marketshare (Microsoft) has a poor history of standards compliance; rather they ignore parts of standards for their own proprietary implementations, which change from version to version.
This has caused Microsoft their current position, where it becomes difficult for new versions of their browser to match the quirks and partial standards compliance of the past versions. It's hard to remove features from a browser when a popular site coded years ago is still using them. In essence, they have painted themselves into a corner.
The problem is not in HTML, the problem is the long term effect of proprietary technology instead of standards compliance. Vendor-owned technologies such as Flash or Silverlight are not the answer, in fact they're characteristic of the problem!