Files and documents from your personal computer are not as safe as you think they are. Things beyond your control like accidental deletes, power surges, drive crashes, stolen laptops, and natural disasters can happen and chances are, you may lose these important documents forever. Tape backup is the thing of the past. Writable CD ROMs and DVDs do not offer enough space for backup. An external USB drive may be a better alternative however, the major drawback is that it can still be damaged, lost or stolen. The next big thing is online storage. Free online backup provides a safer and more secure environment.