What is the difference between Cloud Computing and Software as a Service (SaaS)? Is there a difference? If you look at SaaS in Wikipedia, you will see no mention of cloud.

SaaS is becoming the preferred deployment option for mid-sized businesses because it helps them become more agile, productive and responsive.

The key difference between SaaS Cloud is that users of the Cloud have more control over their data while the data at SaaS servers can be controlled by the provider.

What's the difference between the three most popular cloud computing architectures IaaS, PaaS and SaaS? We've asked the experts to find out.

And finally, security. All SaaS solutions should allow automatic security patching, but the difference defers back to your change control requirements.