This is an interesting post: Google Knol is here, but what about the Knol.com domain name?
As far as we can tell, from the statements on the Knol.com website, Google doesn’t appear to have tried to buy the domain name, at least not before last December when they made their initial announcement.
Wow, is that not all the proof you need that Web sites just don't matter anymore? "Knol: a unit of knowledge." That's it, that's all that matters in a Web driven totally by search. The era of the Web site (excepting social and e-commerce sites) is over.