Handy ADFS / Claims Based Identity Links

Microsoft Windows Identity Foundation:

http://msdn.microsoft.com/en-us/security/aa570351.aspx

http://msdn.microsoft.com/en-US/evalcenter/dd440951.aspx

Microsoft's Claim Based Identity and Access Control (2nd Edition)

http://msdn.microsoft.com/en-us/library/ff423674.aspx

MSDN Magazine:

http://msdn.microsoft.com/en-us/magazine/cc163366.aspx

ADFS:

http://technet.microsoft.com/library/dd727958(WS.10).aspx

Claims Based Identity & Access Control Guide (Codeplex)

http://claimsid.codeplex.com/