1. Software Stack
   1. IDE
      1. Visual Studio
      2. Eclipse
   2. Tools
      1. PHP
      2. Perl
      3. Python
      4. Ruby
   3. Fabric
      1. Apache
      2. MySQL
2. illustrate
   1. Windows Azure Fabric
   2. Azure Services Platform
3. 亚马逊、思科、谷歌、惠普、IBM、微软、甲骨文、SUN，中国移动 大云 bigCloud
4. Amazon EC2
   1. Hadoop Core
      1. Hadoop
         1. Lucene
   2. HBase
   3. HDFS
5. Google App Engine
   1. MapReduce
   2. BigTable
   3. GFS
6. Windows Azure Platform
   1. Windows Azure
   2. SQL Azure
   3. .Net Services
      1. Access Control
      2. Service Bus
      3. Workflow
   4. Live Services
7. IBM Blue Cloud
8. Sun Open Cloud