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 - [message-queues](http://tech.forter.com/comparing-message-queue-architectures-on-aws) - Comparing-message-queue-architectures.
 - [enterprise Integration Patterns](http://www.enterpriseintegrationpatterns.com/patterns/messaging/toc.html) - Patterns and Best Practices for Enterprise Integration.
 - [martinfowler](https://martinfowler.com/articles/patterns-of-distributed-systems/) - Patterns of Distributed Systems.
+- [asynchronous-API](https://beeceptor.com/docs/building-asynchronous-apis/) - Designing asynchronous APIs - Pooling vs Callback.
+- [webhook-product-feature](https://beeceptor.com/docs/webhook-feature-design/) - Building webhook as a product feature.
 
 ## Internet of things
 - [iot-communication-patterns](https://dzone.com/articles/strengths-and-weaknesses-of-iot-communication-patterns) - Strengths and Weaknesses of IoT Communication Patterns.