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The following papers provide a general introduction to publish-subscribe middleware focusing on DDS and comparing it with other middleware technologies and standards.
DDS Architectural Overview (pdf) This paper was contributed by GerardoPardo from Real-Time Innovations. The paper introduces the motivation for the DDS standard and the communication patterns it supports. It also provides a description of some of the QoS supported by DDS. Discuss the paper here.
Quality of Service in Publish-Subscribe (pdf). This paper was contributed by AngeloCorsaro from PrismTech. The paper introduces the publish-subscribe communication paradigm focusing on the aspects that have the biggest impact in the Quality of Service offered to the participants and compares two widely adopted standards: The Java Messaging Service (JMS) and the Data-Distribution Service (DDS). Discuss the paper here.
Comparison of DDS and JMS (pdf) This paper was contributed by RajiveJoshi from Real-Time Innovations. The paper compares in great detail DDS with JMS Discuss the paper here.