What Map Software is this?

[Wacky Mode-On]

I was googling for a world mapping solution then came across this: http://mc.westeroscraft.com/ and almost pooped myself. Is this private software or public?
If this isn't available to us all, can anyone suggest a mapping software?

 

[Malexion]

Dynmap server plugin: http://www.minecraftforum.net/topic/1543523-dynmap-dynamic-web-based-maps-for-minecraft/