Even though Rackspace fell in the ranks from last year's list, it's still the number two cloud provider after Amazon in terms of revenue. It might even be coming close in terms of its user base, a remarkable feat.
But aside from the feel-good soft launch of OpenStack last year, it's still business as usual. The company hasn't made any major renovations to the service, something that may change as Rackspace absorbs cloud management technology firm Cloudkick.
This was first published in February 2011