Amazon SNS (Simple Notification Service) is a web service that makes it easy to send notifications from the cloud to applications or people. Configurable platform for publishing messages immediately to any number of subscribers or other applications. Previously Amazon SNS supported message deliveries via http, email, or Amazon SQS queues. The enhanced, browser-based Management Console allows creation of topics you want to notify recipients (applications or people) about, subscribe clients to these topics, and publish messages over clientsâ€™ protocol of choice (i.e. HTTP, email, SMS, etc.). The service delivers notifications to clients using a â€œpushâ€ mechanism that eliminates the need to periodically check or â€œpollâ€ for new information and updates.