V Communications offers System Commander operating system boot selector and Partition Commander disk partitioning software. DOS or Windows required to install, not to use. http://www.v-com.com
Partition disks, format and resize FAT-16 and FAT-32 file systems. Boot Manager can boot from 30+ partitions on a single hard drive. Open source with extensive documentation in English, French, and German. http://www.ranish.com/part/
Hard drive partitioning software to create, resize, move, and convert partitions without destroying your data. The program also allows multiple operating systems on the same computer reliably. http://www.powerquest.com/partitionmagic/index.html
GNU (Free Software Foundation) program to create, destroy, resize and copy PC disk partitions. It currently supports ext2 and FAT (FAT16 and FAT32) filesystems, Linux swap devices, and MS-DOS disk labels. GNU/Linux or on boot disk, open source. http://www.gnu.org/software/parted/
"The First nondestructive Interactive Partition Splitting program". Splits a DOS partition without deleting its data. [GNU GPL] http://www.igd.fhg.de/~aschaefe/fips/
Linux/UNIX utility which saves partitions in many formats to an image file, supported file systems: ReiserFS, ext2fs/ext3fs, FAT16/32: DOS and Windows, and NTFS. [Beta version] http://www.partimage.org/
NetBSD-based bootfloppy/CD-ROM that allows easy cloning of PC harddisks to deploy a common setup on a number of PCs using FTP. [BSD license] http://www.feyrer.de/g4u/