Single Sign-on in ASP.NET and Other Platforms

I found a nice post related to Single Sign on.

Here is another one with member ship API

Single sign-on across multiple applications in ASP.NET

Single sign-on with Forms Authentication

Implementing Single Sign-On and Sign-Out in ASP.NET Apps

Single Sign On across multiple ASP.NET applications

Understanding Single Sign-On in ASP.NET 2.0

You can download sample code for this at  Single Sign-On Enterprise Security for Web Applications

Here is the one with example Single Sign on using ASP.Net (C#.Net)

 

Hope this helps!