here's some links about cardspace:

• http://dotnetslackers.com/articles/security/Microsoft_CardSpace_Using_a_Card.aspx
• http://chewedpencil.net/blogs/tomas/archive/tags/CardSpace/default.aspx
• Managed Cards: http://cardspace.netfx3.com/files/folders/samples_rc_1/entry5996.aspx
• Casadehambone - http://www.casadehambone.com/Default.aspx#a5052c092-a6b4-4724-9a9e-3502cbcc98a6
• Vitorrio http://blogs.msdn.com/vbertocci/default.aspx
• http://self-issued.info/