From PC World, an article of interest to solos: "Mobile Computing: Online Backup Services."
Most traditional backup methods copy your computer files onto some kind of media, be it an external hard drive, a CD or DVD, or a USB keychain drive. These methods are convenient and quick, and many (particularly external hard drives and DVDs) offer plenty of inexpensive storage space.
The problem is that most of the time, most people keep the external hard drives and DVDs in the same office or building as the computer they're backing up. So, should a disaster--hurricane, earthquake, fire--occur, both the computer and the data backup could be destroyed. ...
That's why I'm a firm believer in online backup services, which save your most critical computer files on a secure, off-site server over the Internet. If you've backed up regularly online, you may lose your computer in a disaster or to a theft, but at least your key files will survive.
The catch? As is explained in the article, backing up online is expensive.
Thanks to Celia Elwell for the link.