Since we're on a major migration process of this website, some component documents here are out of sync right now. In the meantime you may want to look at the asciidoc in the repository: https://github.com/apache/camel/blob/master/README.md https://github.com/apache/camel/blob/master/components/readme.adoc
Folks often assume that a Message Bus is a JMS though so you may wish to refer to the JMS component for traditional MOM support.
Of course there are also ESB products such as Apache ServiceMix which serve as full fledged message busses.
The following demonstrates how the Camel message bus can be used to communicate with consumers and producers
Using the Fluent Builders
Using the Spring XML Extensions