Amazon S3 services http://www.amazon.com/s3 allow you to store "objects" in an highly available network storage, that can be accessed from anywhere. You are charged for storage, and accessing the data.
To use it, you build your own application that uses the S3 web service.
For the next DFO show i have been working on a set of Windows PowerShell CmdLets that allow you to transfer files to and from the service, as well as create, enumerate and remove Buckets. Commands include Get-Bucket, New-Bucket, Remove-Bucket, Add-S3Object, Get-S3Object and Remove-S3Object.
The show should be available soon, and the source code will be available from somewhere too.
The DFO show after will take this to the next level by implementing S3 as a PowerShell provider.
THIS POSTING IS PROVIDED "AS IS" WITH NO WARRANTIES, AND CONFERS NO RIGHTS