Opennebula.org
Openstack.org
Eucalyptus.com
Cloud.com
Cloudfoundry.org
Convirture.com
Rightscale.com
Desktone.com
Vce.com
Gogrid.com
Cloudtweaks.com
Elastichosts.com
Terremark.com
Nicira.com
Cloudsecurityalliance.org
Zunicore.com
Cloudexpoeurope.com
Skytap.com
3tera.com
Microsoftvirtualacademy.com
Linux-kvm.org
Lxcenter.org
Proxmox.com
Xen.org
Xensource.com
Virtualbox.org
Turnkeylinux.org
Openvz.org
Susestudio.com
Qemu.org
Jumpbox.com
Virtualboximages.com
Virtualenv.org
Webbycart.com
Vcritical.com
Owncloud.com
Cloudaccess.net
10gen.com
Jolicloud.com
Cloudera.com
Opscode.com
Clearcenter.com
Cubrid.org
Standingcloud.com
Snaplogic.com
Abiquo.com
Fluidvm.com
Nimbusproject.org
Vmturbo.com
Unhosted.org