We´ve all seen Flickr having a massage or the Bloglines Plumber taking care of Bloglines but reddit by far has the cutest downtimemessage of them all. Look at this:
 what? and you´re perfect?
 you´ve done enough damage, please don´t hit reload.
 building suspense, please wait.
 looks like we shouldn´t have stopped using lisp.
 don´t worry, at least linkit still works.
 think you can do better? apply here
These are the ones I got. Maybe there are more.
Do you know any other websites using similar things like Flickr, Bloglines and reddit?