Software as a Service (SaaS) and cloud storage ranked as the top two public cloud services that enterprises and SMBs currently use. Usage trends haven't changed much over the past year, as SaaS and storage were also the most popular services in 2012. Software as a Service remains king of public cloud services, as enterprises and SMBs increasingly use it to deploy mission-critical applications. Gartner projects global spending on SaaS will reach $22.1 billion in 2015.
Looking ahead to the next six months, the public cloud services that are most ripe for increased adoption are business analytics, disaster recovery and data management. Enterprises are generally more likely to deploy business analytics in the cloud because the elasticity and time and cost savings that come from using it produce benefits more quickly than other methods of analysis.