SB, ESB, now Federated ESB - what the heck. Time to take the next step in enterprise architecture. In this talk we will review the evolution of the publish & subscribe pattern and map its evolution to the Federated ESB. We will see how this puzzle piece fits into an overall architectural solution. We will discuss its challenges and strengths. Come see how a Federated ESB can become the glue of your of your enterprise solution stack!