WARNING: Rather techy story ahead (Okay... I tried to keep it easy )
When you type in a web site address, your computer contacts a DNS server which gives your computer the IP address of the site you want to see. In fact, the only way for two computers to talk to each other is by using an IP address. A DNS server is like a big telephone book with IP addresses in it.
An IP address is like a phone number. You need it to make the call. Even when you select someone from the address book on your cell phone, the number gets dialed, even when it doesn't appear on the screen. The same goes for IP addresses. We don't see them on the screen, but they are used.
If hmotaku moved servers, all the DNS servers around the world need to be notified of this change. There are a lot of DNS servers in the world, so people can acces one which is near them, because that's faster. Before all these DNS servers have processed the change, quite some time will have passed. I think it's about 48 hours before the whole world has been notified of this change.
Domain names and web hosts are often sold seperately.
Put simply- they changed domains, and unless they have a redirect page set up, you'd have to find the new URL using a search engine or something like that. But its up so who cares?
WARNING: Rather techy story ahead
)
i wanna read more 