A good definition can be found here :- en.wikipedia.org/wiki/Cloud_computing

This web site, and all of 38tivity's servers, databases, blogs, CMS, DAMS, image & video libraries - absolutely everything - is in the infinitely scalable and highly available, and resilient cloud - a network of geographically despirsed, high-speed, interconnected, scalable, servers - that we have total control of. The same applies for all our customers: they all benefit from being in the cloud.

In simple terms it is the best possible way to host and store your website/s, blog/s, CMS, DAMS, etc, and all your digital data.

Everything we do for ourselves or our clients is in the cloud.