Black Materia is a Linkshell (a chat room for Final Fantasy 11 Online). People in this Linkshell are kind and wont hesitate to help those in need, or answer any questions you have about "Final Fantasy XI".

      

     The Black Materia Linkshell is in the "Phoenix" Server and possibly other servers, but this website is currently only hosting the Black Materia in the "Phoenix" server.   :)