thenewgreen's slot machine is what I was suggesting. Although, thinking about it, I really don't know if it's that useful. I got the idea from Google's I'm Feeling Lucky button. But, let's face it, when we go on the Internet, we have to know what we're looking for, otherwise we'll end up in 4Chan. Rarely I look for random stuff on the web, but maybe that's just me. I don't use the lucky google button, but perhaps other people use it and like it.

As for a list of random posts, I think that our feed is already random enough as it is.