[frenchy]

I've always figured an HTTP 410 response would be sufficient for that.

[prsutherland]

I'd still consider a 410 as a broken link. The article states

> Pretty much the only good reason for a document to disappear from the Web is that the company which owned the domain name went out of business or can no longer afford to keep the server running.

[marssaxman]

Not 451?