Software-as-a-Service (SaaS) is the most well-known and oldest type of cloud computing: Hosting applications online, not on enterprise computers.

Cloud computing: The very definition of cloud computing remains controversial. Consulting firm Accenture has crafted a useful, concise definition: the dynamic provisioning of IT capabilities ...

Marc Benioff, the CEO of SaaS CRM vendor Salesforce.com, recently explained just why his flavor of the cloud computing model was best suited for today’s troubled economic times.

That growth is consistent with forecasts from GigaOM Research, which expects the total worldwide addressable market for cloud computing to reach $158.8B by 2014, an increase of 126.5% from 2011.

The Cloud Security Alliance and others are working to define security requirements for SaaS, IaaS, and PaaS cloud computing models. Cloud computing is one of the most-discussed topics among IT ...