Asp.net MVC/Silverlight and Sharepoint 2010 integration...

Adding an authentification system in a deployed Roo/Gwt project...

Federated Identity Management...

Supporting both existing forms authentication login and Federated WebSSO...

OpenSSO Fedlet with PHP...

Do I need a custom membership provider to integrate third-party authentication into ASP.NET?...

Web Application - User Authentication Across Domains...

Moving from ADFS to the Geneva Framework...

Specifying Required / Optional Claim Types in the Relying Party for a Passive STS...