微软在Windows Azure的网站上公布了windows azure platform免费试用到6月底，链接如下：
http://www.microsoft.com/windowsazure/free-trial/default.aspx
可以试用的资源如下：
Sign-up now to get free access to the following Windows Azure platform resources:
- Compute:
- 750 hours of an Extra Small Compute Instance
- 25 hours of a Small Compute Instance
- Storage:
- 500MB
- 10k Storage transactions
- Data Transfers:
- 500MB in / 500MB out
- Relational Database:
- 1G Web Edition SQLAzure database (for 90 days only)
- Access Control transactions:
- 100k
- Service Bus connections:
- 2
感兴趣的开发者们赶快去申请试用吧！