google backup

Simple backup system aimed at systems administrators.

Mathusalem is a simple backup system for Mac OS X Leopard

iBackup for Mac is online backup service.

iBackup is a simple to use backup / restore utility

Track and backup all your documents and files.

Easily organize, share and backup all your photo on your computer and on the web

mlbackup is a backup script written in bash and uses rsync 3

Twin is the most flexible online backup solution for Mac OS X

A fast, easy-to-use, and comprehensive backup and cloning utility for Mac OS X

Bac4mac is simple backup software for Mac OS X