Many of these were released a few months ago in a beta form but now they are available on the Microsoft website.    

They include the following:

BizTalk Server 2004: A Messaging Engine Overview

BizTalk Server 2004 and Web Services

Connecting to the Elemica Network with BizTalk Accelerator for RosettaNet 3.0

Developing Integration Solutions with BizTalk Server 2004

Implementing UAN on BizTalk Server 2004 to Integrate Siebel and SAP

Risk Scoring with BizTalk Server 2004 and the Business Rules Framework

Transactions Across BizTalk Server 2004

Working With BizTalk Adapter for SQL Server

BizTalk Server 2004 Convoy Deep Dive

They all look like great reading!

In addition, I have finally gotten around to getting my website up and running.  It still needs A LOT of work, but at least it lists all my BizTalk samples, tools, and demos in one place.  Check it out at