I am rather surprised to see Microsoft Patterns & Practices offering guidance on SharePoint Intranet Application Development to developers and architects, because I had no idea they had SharePoint expertise. Obviously I was mistaken, because p&p has a new SharePoint Guidance Project on CodePlex that is currently being ramped up to offer guidance to developers and architects.
Per the SharePoint Guidance Website:
"We plan to provide guidance to customers on how to build SharePoint Intranet Applications. This includes guidance on how to Architect, Design, and Develop applications as well as best practices."
"This guidance is intended for software architects and software developers who are building applications on Microsoft Office SharePoint Server. Familiarity with Windows SharePoint Services, Microsoft Office SharePoint Server, and ASP.NET is useful for evaluating the guidance."
You can learn more about Patterns & Practices SharePoint Guidance Project here.