Documentation Cloud Beat
eucalyptus allows the creation of private Infrastructure-as-a-Service (IaaS) clouds that are compatible with Amazon Web Services.
OpenShift Origin brings Platform-as-a-Service (PaaS) support to Fedora 18.
Fedora 18 includes the latest version of the OpenStack IaaS cloud service, codenamed "Folsom".
owncloud provides a server and client to synchronize files across multiple devices, including mobile. This allows users to run their own file synchronization service.