The Blender.org webserver has been down for over a day. Planet Blender reports.
From the blender.org administrators:
The last few days the website of Blender 3D has been down. The site has been very slow and unresponsive quite a bit, but we are investigating as to what causes this problem.
The latest guestimate is that it might be a hardware problem. Rest assured that we're trying to get it all back online as soon as possible. Unfortunately until then there's nothing much you can do but wait.
Well, that's not cool. Let's just hope everything works out alright!
(No, that's not really the Blender.org webserver or one of the admins. The pic is by Qfamily under a CC license form Flickr ;-)
Update: something is seriously wrong with the server. After a few remote powercycles it's now no longer responding - someone will check it out tomorrow. For now, the BF put a temporary page in place so you can at least download Blender.
Update 2: Marco replaced 4GB of faulty RAM in the server and it's been up ever since. Looks like that solved the problem!