I'm creating an application that will connect online to a server to collect information. Since I'm trying to save money, I want to see if any of these free service (Dropbox, Google Drive, SkyDrive, Amazon Cloud, etc.) could be used for server space. All I want is a space where I can have people connect to collect data. It's not much of a digital space so I didn't want to use any of the server space from a huge company. What would be the best option for me?