CrashPlan is free (for personal use) software which allows you to configure backups to multiple locations for your important data - local hard drives, other computers on your network, even offsite with friends or family. It has client software for all major operating systems, encryption to protect your sensitive information, and is easy to set up.
Developer: Code 42 Software, Inc.
Secure backup to your own computers and hard drives or friends & family - no storage limits.
Configure a affordable custom PC with the Crashplan.