On Line PC backup solutions have been available for several years. You can now achieve a comparable backup service by using the 360 Synchronization function in http://www.group.mx. 360 Sync will automatically upload files and store them at a SAS70 Type II data center. It will also distribute those files to anyone you allow access. Lauren Whitehouse goes into more detail in her recent article.
GroupMix 360 Sync and Cloud Backup services