My teammate Remus Rusanu spawned his blog today with a great article on how to write a simple publish-subscribe service in SQL Server 2005 using Service Broker. While SQL Server 2005 does not natively support a pub-sub architecture and the only type of conversations provided by the Service Broker are peer-to-peer dialogs, Remus shows how dialogs are a sufficient primitive to implement other types of communication such as pub-sub. So for those of you who have been asking how to build pub-sub using Service Broker, this is a good place to start.
Remus has been heavily involved with answering posts on the SSB forums and has been contributing to the SSB CodeGallery as well. I'm sure his blog will soon be a useful resource for SSB programmers and his articles will fill the void the Write Ahead Blog has been suffering from due to lack of new ideas :-)