1.0 Apache Kafka
Apache Kafka originated with LinkedIn and later became an open-sourced Apache platform in 2011. Kafka is a message queuing system and is written in Java and Scala, a distributed publish-subscribe messaging system that is designed to be fast, scalable, and durable.
2.0 Active MQ
Apache ActiveMQ is the most popular and powerful open source messaging and Integration Patterns server. It is an open source message broker written in Java together with a full Java Message Service (JMS) client
3.0 Rabbit MQ
RabbitMQ is an open source message broker software (sometimes called message-oriented middleware) that implements the Advanced Message Queuing Protocol (AMQP). The RabbitMQ server is written in the Erlang programming language and is built on the Open Telecom Platform framework for clustering and failover.
4.0 Amazon SQS (Simple Queue Service)
The Anypoint SQS connector provides connectivity to the Amazon SQS API, allowing Mule ESB users to manage SQS queueing services without having to deal with the API directly. Amazon SQS is durable, reliable, cost-effective, secure, and fully managed queuing service.
5.0 Windows Azure Service Bus
Windows Azure supports the communication with queues, topics, and EventHubs through AMQP 1.0.
Send messages to queues, topics, and EventHubs with the support of AMQP.
Receive from queues and topic asynchronously.
Supports Windows Service Bus on-premise as well as Azure Service Bus on the cloud.
Rest management API like CRUD for queues, topics, subscriptions, and rules.
5.1 Windows Azure Service Bus Queue
5.2 Windows Azure Service Bus Topic
Now, you know how to connect various message queuing systems with Mule ESB.