Oracle Database on AWS white paper

This white paper is a great resource for Oracle DBAs and developers:

http://media.amazonwebservices.com/AWS_RDBMS_Oracle.pdf

Oracle Database on AWS - Striping disk

Achieving higher disk I/O when running Oracle on AWS on EC2 you can use Oracle Database ASM.  More information can be found here:

https://blogs.oracle.com/simonthorpe/entry/configuring_oracle_asm_disks_i