Considering this seems to be working at the moment (2 hours later) does this really qualify as news? Sure, significant downtime might be of interest, but are we really going to link the URL of every web-service that is down for an hour or two here or there?
A post about the causes or effects of said outage, or general related social commentary might be worthy of a HN submission - but to simply throw the URL of any service showing a 404 for some small amount of time seems a bit pointless (exceptions perhaps being Google/Facebook being down worldwide for a couple of hours).