> Amazon Simple Notification Service (Amazon SNS) is a managed service that provides message delivery from publishers to subscribers (also known as _producers_ and _consumers_). Publishers communicate asynchronously with subscribers by sending messages to a _topic_, which is a logical access point and communication channel. Clients can subscribe to the SNS topic and receive published messages using a supported protocol, such as Amazon Kinesis Data Firehose, Amazon SQS, AWS Lambda, HTTP, email, mobile push notifications, and mobile text messages (SMS). [^aws1] [^aws1]: https://docs.aws.amazon.com/sns/latest/dg/welcome.html