For once, John Dvorak rants on a company other than Apple:

I think it can now be safely said, in hindsight, that Microsoft's entry into the browser business and its subsequent linking of the browser into the Windows operating system looks to be the worst decision — and perhaps the biggest, most costly gaffe — the company ever made.

I call it the Great Microsoft Blunder. His solution is for Microsoft to halt any Internet Explorer development, throw some cash to Mozilla, and invest in Opera. Works for me.