In the paper, we present an internet personal-live broadcasting server system. Our solution enables amateur users to broadcast with basic multimedia equipments. For the scalable system architecture, the broadcasting server is configured with a cluster of streaming units. For scalable broadcasting services, we build multiple-channel establishment and channel expansion. Concurrent services for a number of broadcasting channels are effectively provided, and also the capacity of channel can be expanded by connecting another group according as the number of participants increases. Furthermore, for the sake of complete live broadcasting with high quality of transmission, it supports both TCP and UDP according to status of network environments and received packet loss in the user system. The performance of the system is effectively evaluated at such practical commercial sites as well-known community and e-business sites.