Private World of Warcraft servers/realms
 

How can I find other persons that have their own private servers that I can join?
How is it possible to know who has private servers at all?

And if I can't find one, how can I create my own private server?
What type of tools and such do I need to create my own World of Warcraft Private server?

Private servers are against Blizzard's EULA and ToS and thus discussion of them in anything other than a hypothetical sense is prohibited on this board.