I'm kind of ashamed to admit it, but I did get a bit nostalgic looking at Yahoo's Retrispecto-vision

I remember using the Random button to find some pretty sweet stuff. Of course, the web was around 60% sweet stuff back then. I hadn't actually been to yahoo.com in a couple years at least, and the way it looks now, I thought I was at the wrong website. I wish there were a blue-text, grey background version still.