If you have seen me present about web services and Oracle Application Express 4.0 in the last year (at APEXposed, OOW, or ODTUG Kaleidoscope), you have probably heard me say that a white paper about building an Amazon S3 client with APEX was forthcoming. I am happy to announce the paper is now available along with a corresponding sample application. The best part is with the AWS Free Usage Tier, you can try everything out for free!