This one might be the greatest: telnet towel.blinkenlights.nl

Never more shall I be bored during the installation of Debian. Combined with the glamorous features of 0verkill (http://artax.karlin.mff.cuni.cz/~brain/0verkill/) I will soon be able to get completely rid of X11.

No more shall I be dependent on Nvidias buggy drivers. Buggy, woggy, woo!

That's quite possibly the greatest thing I've ever seen.