[GordonS]

Azure has Azure Service Bus (a "full" messaging system, with subscriptions, topics, routing, AMQP 1.0 etc), and also Azure Storage Queues (a very simple queueing system where a client polls a single queue for messages).

[pranay01]

Thanks, but won't restricting to a specific cloud service reduce adoption?

[GordonS]

I was just outlining what the messaging options on Azure were, for the parent poster.