Kirk Evans is a Microsoft Architect for the Azure Center of Excellence.
Introduction to SharePoint and Azure IaaS
Building SharePoint Apps with Windows Azure Platform as a Service
SharePoint Solutions and Architectures on Windows Azure Infrastructure Services
Understanding Authentication and Permissions with Apps for SharePoint and Office
Maxim Karpov is putting together a free code camp targeted at portal development. Visit his blog for details, the event is August 20th at Microsoft's office in Charlotte, NC.