6. Defining features Virtualization Multi-tenancy Realtime provisioning Pay-per-use Platform as a Service Infrastructure as a Service Software as a Service
7. Cloud computing- Products Google Apps Engine, Salesforce CRM, MS Azure Project Kenai AWS,EC2, S3, Cloudwatch GoGrid VLAN
8. Cloud computing- Developer Resources AWS Toolkit, API Domain API, Application API Common API, HDFS, MapReduce Azure SDK and tools