همونطور که A-750 جان هم اشاره کردن , Wordpress Multi User یا به قولی WP MU.

بخش مربوط این برنامه تو وب سایت وب سایت رسمی برنامه وردپرس هم اینه.

Let your imagination multiply

Ever dream of running hundreds of thousands of blogs with a single install of WordPress?

WordPress MU, or multi-user, is designed to do exactly that. It is most famously used for WordPress.com where it serves tens of millions of hits on millions of blogs each day.