If you got a new hard disk or new computer you might want to copy the contents of the old hard drive to the new one to continue working with all of your files, operating system and settings. PC Network Clone is a disk copy software that can copy the contents of a hard drive to one or multiple other drives that are connected to each other over a network.
The Home Edition can copy the contents of a hard disk to up to three client computers with a maximum speed of up to 9 Gigabytes per minute which should be more than enough for home usage. It does have some other limitations in place: Only IDE and SATA hard disks are supported but files can be copied from all filesystems.
The professional disk copy version has a wider range of supported hardware (Firewire, USB..), an almost 7 times higher transfer rate maximum and a maximum client limit of 20.

Technically a Linux Live CD is used to boot the source PC and distribute the data to the other hard disks. Those can be on the same computer or on computers connected over the network.

Disk Copy Software
HD Clone
Network Security Software Bothunter
Network Management Software KontrolPack
Cathy A Fast Portable Disk Catalog Software
Remote Batch Copy
Control Computer Hardware And Workstations In A Computer Network
Network Monitoring Software Newt