Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
Although duplicates, versioned backups, and offsite storage cover most situations the typical user will encounter, some people have special backup needs that don’t quite fit the mold.
I’m thinking, for example, of users with vast numbers of digital photos and those who are Dealing with Huge Volumes of Data because they work extensively with the gigantic files required for digital video or pro audio applications.