Is Digg Down, I get a "Out of Service" message.

Yep: http://down.digg.com/

Tut, tut, tut. They're issuing a 302 redirect and then a 200 response code.

Have they never heard of 503...?

And it's back up...

What's the difference between dig and an old cow?

(Sorry, I could only come up with the beginning of this joke.)