GoGrid: provides a 100x credit policy combined with 100% SLA for any hardware and network outages and no minimum thresholds (e.g. 1 hour outage = 100 hour credit). This is by far the most generous of the 38 IaaS vendors we evaluated. GoGrid's service is also one of the most reliable IaaS services we currently monitor (100% US West and 99.999% US East)

The most interesting layer - the only one that really deserves to be called "cloud computing", say purists - is "infrastructure as a service" (IaaS). IaaS offers basic computing services, from number crunching to data storage, which customers can combine to build highly adaptable computer systems. The market leaders are GoGrid, Rackspace and Amazon Web Services, the computing arm of the online retailer, which made headlines for kicking WikiLeaks off its servers.

GoGrid is joining forces with Ingram Micro to bring cloud computing infrastructure offerings to Ingram's Cloud Marketplace. The move puts GoGrid among the first cloud service providers to contribute to the Ingram Micro Cloud, a reseller enablement platform and online Cloud Marketplace for VARs and MSPs. By teaming up with Ingram Micro, GoGrid is looking to bring VARs and MSPs into the cloud by filling the demand to migrate customers from on-premise IT to the cloud, and to help resellers adapt their business models to support new mechanisms for scale and sustained profitability, said Jack Duffy, GoGrid executive vice president of sales and business development.

At the center of the program is GoGrid Exchange, the San Francisco-based cloud provider's cloud solutions marketplace. Through the new program, open-source partners and businesses can package on-demand versions of software to boost cloud computing deployments and the usage of open source software. GoGrid's OSS Partner Program is another signal that the open-source community is embracing cloud computing.