Data storage is like space, it hates a void. As local storage devices have taken leaps from megabytes to gigabytes and terabytes so has grown our need to fill them with images, movies, and applications.
The current leap we are taking is away from local storage to cloud storage. Loosely defined, "the cloud", is software or hardware resources offered via the internet on a monthly and usage basis. Types of cloud storage solutions range from transactional storage such as Amazons S3 and Microsoft's Azure Storage, to virtual drives like Dropbox and Box.net, and online backup services like Mozy and Veddio.