Cloud computing is a significant shift in IT, and IT pros are wary and often unsure what to make of it. More a new way to look at IT delivery and operations than a new technology, there are very real forces driving it forward. Learn more about it the basic pressures driving cloud computing in this podcast with Jeff Kaplan, managing director at THINKstrategies Inc. Jeff also discusses Amazon's influence on the cloud market, along with the three elements that draw enterprises into the cloud.