World Server is Down

From our server status page.

Q u o t e:
Due to technical issues being encountered, immediate restarts were required for all realms. We apologize for the inconvenience this has caused and the late notice. All realms should now be live and available for play.

Thank you for your understanding.

http://forums.worldofwarcraft.com/thread.html?topicId=27607281614&postId=276047273781&sid=1#0

Q u o t e:
I login, select my character, and sit there stuck at the loading screen.

Realm - Ner'zhul
Char - Tenakx (Holy Paladin)

I'd let it set at that screen till you normally disconnect. If you still find you can't access a particular character, please do submit a petition. That really isn't connected to this thread, however.