There are three major herds, but each one is divided into subherds. These subherds must relate to the main herd. For example, since Celestial means the sky, there may be herds such as the Star Herd and Sun Herd. To audition your herd or character, you must first post them in the Signups categories. Once they are approved, others can join your herd or associate with your character. You are the moderator of your herd, it is your job to help and moderate that herd, including accepting characters.