Yeah, if only it actually served the purpose of getting the user quickly and easily to another page that might help them...

That's actually been around for a number of years...

No, it seems like a rip-off of a better one that's been around for a number of years. I'll see if I can find it.

Maybe a better one would delve into defining/tutoring some S-expressions with an introduction to Common Lisp? It could go on for hours.

New idea: rent out advertising on 404 pages ;-)

Doesn't Microsoft do something like this? I mean when you type in a server name that does not exist.

I saw this around five years ago.