Cloud Computing is the new buzzword for what's happening at Google and Amazon. They have so much server power in their systems that they have extra bandwidth to work with and are starting to sell it to customers. If you want a site hosted and don't want to pay as much as you would with other providers, Google and Amazon will take care of it for you.
It's a pretty interesting idea and one worth reading about. For some articles and some insights on Cloud Computing, check out these articles:
Have a great weekend!!