Backing Up Your Data LG #32 - A Convenient and Practical Approach to Backing Up Your Data. - http://linuxgazette.net/issue32/stemen.html
Taper (for Linux) - Software to back up your files to tape drive. Also has support to back up to hard disk. - http://taper.sourceforge.net/
CD-Utils - Linux CD Backup and Burning - A simple way to backup data and burn CD media from the unix command line. Includes a web-based interface for SME Server. Burns data, audio, multi-mode and iso images. - http://cd-utils.sourceforge.net
Linux System Backup and Disaster Recovery - Storix Backup Administrator for Linux is a full-featured local and network backup management product that also provides flexible system installation and recovery. - http://www.storix.com/linuxbackup
The Recover Homepage - Recover is a program to undelete files. Using recover, your file-recover rate will exceed your manual file-recover rate. This program will help users of Linux recover deleted files. - http://recover.sourceforge.net/linux/recover/
NetworkBK, Network-based backup application - NetworkBK is a practical network backup solution for personal computers. It is designed for easy recovery of files, it does not use any special devices or proprietary file formats. NetworkBK is a multi-platform application written in JavaTM. - http://visualversion.com/networkbk/index.html