If you'd like to learn more on Office Business Applications (OBAs), you'll definitely be interested in pre-ordering a brand new book from MS Press titled '7 Microsoft® Office Business Applications for Office SharePoint® Server 2007'. Important material covered in the book is the different OBA patterns that provide guidance and best practices on how to create your OBA.

Excerpts out of the book are available on the MSDN site:

• Part 1 provides a good OBA overview
• Part 2 is all about OBA patterns

Readers who like to get notified of more OBA stuff can subscribe to the OBA Team Blog.