Back up those important files for little to no cost!

These 17 free and low-cost services make it easier than ever to back up and share your files online.

All your important files--text documents, spreadsheets, music and videos, you name it--may start out sitting safe and snug on your PC's hard drive. But what if the drive goes belly up, or runs out of room? And what if you'd like an easy way to share those files with coworkers or friends? Web-based storage services let you back up your data, store your files on a Web server, or share them quickly and simply with anyone, often at no cost. Of the 17 services we tried, our favorite backup service is IBackup, while the GoDaddy Online File Folder is our pick of the storage sites. And for sharing files, we like the free 4shared.com service....