HP has just announced that they are launching a new online storage service called Upline. The service provides unlimited storage for all your documents, photos, music, videos, and anything else you have on your Windows PC. The interface makes Upline easy to use, which is important, and once installed, the service checks for new files every 15 minutes (by default) and then uploads them in the background to HP's servers.
A free version lets you store 1 GB of data for one year, but if you're really going to back up your computer, you'll need to go with one of the paid plans. For $59/year, a "Home" plan is available, which gives you unlimited storage and allows up to three PCs to connect. That's quite a bargain when you think about it. (But is it really unlimited?)
For businesses, the unlimited storage option can range up to $299 per year, depending on how many users and PCs you have.
While you're traveling, you can access your stored files from a web-based interface from which you can also email the files or publish them for public access.
If desired, you can specify the program to back up to a second hard drive, server, or PC on your local network, too.
There are, however, a couple of problems you should be aware of: Upline doesn't back up email archives or system restore files, but that may change in the future.
In the meantime, you can check out what Upline has to offer from the HP homepage for the service here.