Microsoft
The Windows Azure platform [1], first announced in October 2008, had its business and partner model debut last month. Some cloud capabilities appeared earlier, in Microsoft's Silverlight 3 Beta and Expression Blend 3 Preview platforms.
Azure includes a cloud services operating system, a Web-based relational database in Microsoft SQL Azure, and connectivity and interoperability with .NET Services. The platform combines cloud-based developer capabilities with storage, computational and network infrastructure services hosted on servers in Microsoft's global datacenter network.
Links:
[1] http://www.windowsazure.com/
[2] http://www.fiercebiotechit.com/special-reports/ibm
[3] http://www.fiercebiotechit.com/special-reports/fierce-cloud-services-biopharma-r-d
[4] http://www.fiercebiotechit.com/special-reports/oracle