Identity and access management has become more complex, as digital identities take on an increasingly important role in specifying how users interact with computer networks and line-of-business applications. Therefore, application developers must have a consistent and effective strategy for building software that leverages the identity rich capabilities of the Windows platform.
Security Developer Center
The .NET Developer’s Guide to Identity
Explore this roadmap for developers and architects who want to learn how to build identity-aware applications on the Windows platform. From authentication and authorization to federated identity, you’ll discover techniques that can be used today and in the future to leverage identity infrastructure such as Active Directory.
Learn the Principles and Benefits of Service Oriented Architecture
Fredrick Chong discusses the principles and benefits of Service Oriented Architecture (SOA), specifically as they relate to the technical challenges in identity and access management
Security Application Block Identity Information Feature Pack
Keith Brown's blog - Security Briefs. and Kim Cameron's Identity Blog.