There has been many many problems with loads of minecraft related business. Users are claiming that they cannot connect to their own servers (which needs an '&override=true after the URL), servers not appearing in the list, Minecrafts domains being overloaded, and loads more.

The server URL hasn't changed, it is still in the sticky in this forum.

As with WoM, due to Minecraft moving servers, and the WoM client not being updated to compensate, it is ruining peoples minecraft.jar's and downloading one that doesn't exist, that replacing their working minecraft.jar with one that doesn't contain anything, and them WoM complains about it. Essentially, WoM needs to be updated to 1.6 (current 1.5.9) before it actually starts working.

The server is probably up, but there's nothing really else that can be done.