How do I join Mixi?
Unfortunately, Mixi changed its membership policy some time ago, and it has become rather difficult for overseas users to join. In order to join Mixi, new users must be invited by current members, and part of the registration process requires new users to have a Japanese keitai email address, which you only have if you own a cell phone in Japan. In short, your best bet is to talk to someone you know who is currently residing in Japan.