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Yeah, I've not been able to access it too well today. Some times its up but the webpage has been text only and not properly formatted other times its down completely.
 
There's a note here.

Due to an overheating problem in our European data center many of our servers turned off to protect themselves. As this impacted all Wikipedia and other projects access from European users, we were forced to move all user traffic to our Florida cluster, for which we have a standard quick failover procedure in place, that changes our DNS entries.

However, shortly after we did this failover switch, it turned out that this failover mechanism was now broken, causing the DNS resolution of Wikimedia sites to stop working globally. This problem was quickly resolved, but unfortunately it may take up to an hour before access is restored for everyone, due to caching effects.

We apologize for the inconvenience this has caused.
 
From: PC Mag

Wikipedia Site Fails After Servers Overheat

03.24.10

by Brian Heater :)D)

Wikipedia experienced major service outages today that took the popular free reference site down for roughly 2 hours, beginning at around 1:00 PM EST.

According to a Facebook blog post, the outage has been attributed to overheating at the site's European data center.

The servers shut down, which ultimately led to more issues:

"As this impacted all Wikipedia and other projects access from European users, we were forced to move all user traffic to our Florida cluster, for which we have a standard quick failover procedure in place, that changes our DNS entries," the site said in a statement. "However, shortly after we did this failover switch, it turned out that this failover mechanism was now broken, causing the DNS resolution of Wikimedia sites to stop working globally.

Wikipedia resolved most of the problems by 3:00 PM EST, according to the site's official Twitter account. Due to continued overheating at the Amsterdam data center, however, users may still be experiencing service glitches.

It just came back up for me.
 
Very glad I didn't have homework to do during the downtime...I might have actually had to do work, rather than endlessly procrastinating on wikipedia. :eek:
 
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