If you are interested in message or event based architectures, bookmark the link to the following Github repo: https://github.com/clemensv/messaging
This repository is created by Clemens Vaster, the product architect of the messaging and eventing services in the Microsoft Azure cloud. It refers to a lot of talks and articles that help you to get started with message and event based systems and links to the product pages of multiple cloud providers and open source products that exist in this space.