Azure Queue Storage is a storage service used for storing large numbers of messages that can be accessed from anywhere via authenticated calls.
The size of a single message can be 64kb.
The time for which the messages stay in the queue is 7 Days.
Queues can extend up to the total capacity limit of Storage account.
Common use cases:
Creating a backlog of work to process asynchronously.
Passing messages from an Azure web role to an Azure worker role.
Queue storage can be accessed as http://<account>.queue.core.windows.net/<QueueName>.