*If you get alot of readers, and they comment on your site, tell them about us.
*Just don't go to random ones. This is called spam, and that's bad.
*If you are in other rating communities, tell them about us. Permission is key.
*Go to the "promote without joining" sites... and do so.
*Do you have friends who just started on LJ and they want communities? Tell them about us.
Just do it for crying out loud. Promote everywhere. Come on, now! If you want the community to die, then leave others can fill spaces. If you don't want it to die, than do something about it.