Amazon EC2/S3
Amazon Web Services (AWS) delivers a set of services that together form a reliable, scalable, and inexpensive computing platform “in the cloud”.

Mosso
Mosso was started to provide developers with a reliable platform for applications and email--without developers being the ones responsible for all the technology.

Hostway FlexCloud
Hostway is the first major Web hosting company to roll out a cloud computing infrastructure for shared Web hosting customers, delivering unprecedented scalability, flexibility and reliability using innovative, affordable technology solutions.

GoGrid
GoGrid Cloud Servers support a variety of Linux and Windows operating systems with preinstalled software, such as IIS, Apache, PHP, Microsoft SQL Server, and MySQL. Our Server images allow you to quickly deploy a single server or build a load balanced server network in just a few clicks without having to spend time installing software.

3Tera AppLogic
AppLogic is a grid operating system which enables cloud computing for running and scaling web applications. Our hosting partners use AppLogic to offer clouds and utility computing services for transactional and streaming applications on grids of commodity servers in their datacenters.

Google App Engine
Google App Engine offers users the ability to build and host web applications on Google's infrastructure.

Live Mesh
Sync, share, and access the information you care about—wherever you happen to be.

Jungle Disk
Jungle Disk lets you store files and automatically backup data easily and securely. Jungle Disk has a great automatic backup system, and can easily be used for basic data backup, but Jungle Disk also gives you a complete network drive that you can use from multiple machines - like an unlimited size USB drive that you can connect to from anywhere. The exclusive caching features in Jungle Disk make it so that using your network drive is as fast as a local drive, and you don't need to constantly transfer data from the server.

CloudAppy
Drag-and-drop cloud hosting. Have a JAVA, RAILS, or PHP application that you would like load-balanced in a high-availability cloud. Register for your FREE account to find out how easy it is.

Etelos
The Etelos Platform Suite is a comprehensive solution for enterprises to publish and distribute Web-based applications and services for businesses, organizations and users. It is made up of four platforms available as individual solutions or as an integrated suite.