Elephant Drive, in association with Amazon is creating a service similar to that of XDrive. However, they are offering unlimited offsite backup free of charge if you sign up as a beta tester.
Run a Backup Job – You can ask ElephantDrive to to run a Backup Job either by “folder” or by “type”. For a “folder” Backup Job, you select a specific folder on your computer (like “My Documents,” or “important stuff,” or “C://”), and ElephantDrive will make a backup of every file and folder that lives there. For a “type” Backup Job, instead of selecting a specific folder you choose one or more file types (like “doc,” or “xls,” or “mp3”), and ElephantDrive will make a backup of every file of that type it finds. We tried to make this process even easier by having a few of these jobs pre-defined and ready to run — in only two clicks, you can get them started! Better yet, once created, these jobs will automatically run at regular intervals, so you’ll always be up to date.
Upload a specific item – You can also move files and folders between your computer and ElephantDrive on an ad hoc basis using the Trunk Manager. Either drag-and-drop like any other Windows programs, or select the items you to move into your Trunk or back to your computer and click the upload or download buttons.
Sign up for an account here.
[tags]online backup, free storage, unlimited online drive[/tags]


There’s also Box.Net … not unlimited though, but at least you can also use it as a file sharing network