Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
Axel, this is the coolest site! I never laughed so hard reading "legal action threats" and pathetic attempts for flames. Blacklisting is a great concept: keep up the good work!
[Funny how many people look down on people with college/university e-mail addresses. You could be the dean or a PhD student and they still address you as a first-year student.]