To join please send email to:
j-o-i-n@minimoomaa.com
Remove the dashes first.
Inside the email please detail the username you would like to use, try not to use your real name.
Your account will then be setup with your requested username, the associated email address will be the one you have used to send the email.
A random password will also be sent, this you can change after logging in via the control panel "my controls" top right of the page.
Good luck!