Fog: A Powerful “Cloud Services” Gem

fog is a Ruby gem by Wesley Beary to control a variety of cloud services through a unified API. It deals with both server cloud and storage based services and supports Amazon S3 and Rackspace Files; as well as servers and on Amazon EC2, Rackspace Servers, Terremark vCloud and Slicehost. Support is also available for Amazon ELB and SimpleDB.
(Link: Fog: A Powerful “Cloud Services” Gem)