- SNS Documentation: https://docs.aws.amazon.com/sns/index.html#lang/en_us
- SNS Subscribtions: https://docs.aws.amazon.com/sns/latest/api/API_Subscribe.html
- SNS CLI Reference: https://docs.aws.amazon.com/cli/latest/reference/sns/index.html
- SNS Service Limits: https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html
- SNS Access Policy Language: https://docs.aws.amazon.com/sns/latest/dg/AccessPolicyLanguage_KeyConcepts.html