http://reductivelabs.com/trac/puppet
Puppet is a system to abstract system administrator tasks such as configuring web servers, deploying database servers, and so on. It provides an abstract language to specify configurations and then handles deployment for you.
http://weoceo.weogeo.com/
WeoCEO is designed to provide a constant front end to Amazon EC2 / S3 services. It provides stable IP, load balancing and DNS management to ensure your app stays online.
