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
I have worked with many customers on understanding WSRP and the producer vs. consumer discussion. We introduced a WSRP consumer web part in MOSS 2007, and it's great to finally announce that we have a producer story as well.
Go to Ryan's blog to see more about the WSRP Toolkit for SharePoint.