Windows Azure Success Indicators
Here are some key ones as of 6/14/13 (https://blogs.msdn.com/b/windowsazure/archive/2013/06/14/50-percent-of-fortune-500s-using-windows-azure.aspx):
50% of the Fortune 500 using Windows Azure
250K customers
Average of 1000 new customers per day
Average of 270,000 requests per second
Peak demand up to 880,000 requests per second
Four trillion(!!) objects in blob storage