BizTalk videos are live on .NET University
The four-part learning series entitled BizTalk Basics, authored by Karl Rissland, has been recorded, and is available for download from .NET University. Many thanks to Mark Berry and Karl for recording the content. PowerPoint slides with full speaker notes are also available for download.
As always with .NET University content, all material is freely downloadable, and is intended for you to take, learn, and re-present to your user group, IT department, or any other technical audience that wants to learn about BizTalk Server 2006. Enjoy!