Amazon EC2 Regions and Availability Zones http://aws.amazon.com/about-aws/globalinfrastructure/ http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html
Gartner: Magic Quadrant for Cloud Infrastructure as a Service (Aug 2013) http://www.gartner.com/technology/reprints.do?id=1-1IMDMZ5&ct=130819&st=sb
Windows Azure Data Centre Locations http://matthew.sorvaag.net/2011/06/windows-azure-data-centre-locations/ http://blogs.msdn.com/b/windowsazure/archive/2010/08/09/20-nodes-available-globally-for-the-windows-azure-cdn.aspx
Windows Azure DataCenter Locations https://maps.google.com/maps/ms?msid=214511169319669615866.0004d04e018a4727767b8&msa=0&ll=-3.513421,-145.195312&spn=147.890481,316.054688