I learned this morning from Daring Fireball that Google has temporarily restored their earliest available index from 2001, allowing you to see what was available back then for your searches.
Kind of cool. But a little depressing for me personally, to see that back then my site was the first result you’d get when searching for John Coltrane. Now it’s 7th, but I suppose I should be glad it’s still on the front page, given my lack of attention to SEO. (Of course, I think SEO is at least 75% snake oil anyway.)