There are many online storage services available to us from Box.net, Drop.io, Filesocial, and many others.However, if we look for simplicity, we should look to Getdropbox.

Getdropbox is an online storage service that lets you share files with others synchronizing files stored on a computer.

The most interesting part of this service is synchronization. Installing the application, you can set a folder on your computer as if it were available on the internet, so you can access the same files from home or office, without having to worry about synchronization to keep an updated version.

They have a free version with limited features (2 GB of space and certain limitations as to the historical archives) and two paid versions.