Today I’d like to tell you about our newest service, the Amazon Simple Notification Service.
We want to make it even easier for developers to build highly functional and architecturally complex applications on AWS. It turns out that applications of this type can often benefit from a publish/subscribe messaging paradigm. In such a system, publishers and receivers of messages are decoupled and unaware of each other’s existence. The receivers (also known as subscribers) express interest in certain topics. The senders (publishers) can send a message to a topic. The message will then be immediately delivered or pushed to all of the subscribers to the topic.