Code by Answers for AWS
Answers for AWS is committed to making AWS easier to use, and has made some open-source projects for you to use.
NetflixOSS Ansible Playbooks
Here you will find Ansible Playbooks, CloudFormation templates, and pre-build AMIs for various NetflixOSS projects.
Graffiti Monkey
Goes around tagging AWS resources for you.
Backup Monkey
Makes sure you have snapshots of your EBS volumes and keeps them on rotation.
DistAMI
Helps distribute AMIs to other regions, and share them with the public.