I’ve been trying to access some information on Wikipedia the last few hours, but the online public encyclopedia had been unavailable for a while, and I’m not the only one having trouble accessing the site, just go do a quick search on twitter to see the world tweeting about the downtime.
As far as I know there is no official way to check server status but will continue to investigate what is happening and post any new information I manage to find.
Update: Wikipedia is back online, Thanks to the Update from John who tracked down the answer on Yahoo! Answers, it appears there was a power outage in there Florida data center.