Here are some case studies and materials for running Oracle Peoplesoft on AWS:
1. Select Staffing presented along with AWS and DLZP. http://www.slideshare.net/tomlaszewski/dat202-using-amazon-rds-to-power-enterprise-applications-1-0
1. Select Staffing presented along with AWS and DLZP. http://www.slideshare.net/tomlaszewski/dat202-using-amazon-rds-to-power-enterprise-applications-1-0
2. Data migration from on premise Oracle to Oracle AWS RDS (same technique can be used for EC2, in fact, with EC2 may be easier to just do an RMAN dump, FTP, SCP or Tsunami to transfer to AWS,) and restore using RMAN on EC2). http://www.slideshare.net/tomlaszewski/advanced-data-migration-techniques-for-amazon-rds
3. Best practices for Peoplesoft on premise to AWS done at Oracle OpenWorld last year by DLZP: http://www.slideshare.net/tomlaszewski/oracle-peoplesoft-on-aws
4. Test drive:http://aws.amazon.com/testdrive/oracle/