Identity Overview

• Digital Identity for .NET Applications: A Technology Overview - David Chappell (August 2007) 

Laws of Identity

• Laws of Identity - Kim Cameron (May 2005)

The Identity Metasystem

• Microsoft's Vision for an Identity Metasystem - Microsoft (May 2005)
• Design Rationale behind the Identity Metasystem Architecture - Kim Cameron and Mike Jones (2006)
• Linux for Suits - Independent Identity - Doc Searls, Linux Journal (September 2006)

Windows CardSpace and Information Cards

• Secure Your ASP.NET Apps And WCF Services With Windows CardSpace - Michèle Leroux Bustamante (April 2007)
• A One-Page Introduction to Windows CardSpace - Mike Jones (January 2007)
• Introducing Windows CardSpace - David Chappell, Chappell & Associates (April 2006)
• A First Look at InfoCard - Keith Brown, Pluralsight (April 2006)
• Step-by-Step Guide to InfoCard - Keith Brown, Pluralsight (May 2006)
• Microsoft pushes InfoCard for secure online ID - Todd Bishop, Seattle Post-Intelligencer (February 2006)

How-to Documents

• Patterns for Supporting Information Cards at Web Sites: Personal Cards for Sign-up and Sign-In - Keith Ballinger, Bill Barnes, Garrett Serack, and James Causey (August 2007 updated version)

Information Card Profile Documents

• Identity Selector Interoperability Profile V1.0 - Arun Nanda (April 2007, updated version)
• An Implementer’s Guide to the Identity Selector Interoperability Profile V1.0 - Microsoft Corporation and Ping Identity Corporation (April 2007 updated version)
• A Guide to Using the Identity Selector Interoperability Profile V1.0 within Web Applications and Browsers - Mike Jones (April 2007, updated version)