Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. YHM is a free hosting billing software package currently being developed by Polarbear541. It is written in PHP and licensed as free software under the GNU General Public License. It is currently under development. General Features: compatible with cPanel (using the access hash key), unlimited number of clients, staff, packages etc., developed in PHP, compatible with MySQL database servers, modules: Email/Admin Verification and Post2Host (Under Development). Member Features: Client Area, Profiles and Change Password, Controls for their Hosting Package/s, Announcements and Contact Info set inside AdminCP, Fully Featured Support System (Ticket System under Development).