SQS

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables applications to quickly and reliably queue messages that one component of an application can later process. SQS eliminates the complexity and overhead associated with managing and operating message-oriented middleware, and provides a simple and cost-effective way to decouple the components of an application. SQS offers a reliable, highly-scalable, hosted queue for storing messages as they travel between computers. It also provides a simple web services interface that can be used to access queues, add, receive, and delete messages.