A couple of ASP.NET controls for CardSpace
During the webcast series I did over the past few weeks, I showed a demo of a lab that covers Windows CardSpace.
In the last part of the lab we show one example of a server control that does just that. You can actually get the source code for that CardSpace server control by launching the lab and copying it out. Also, I found a few more out on the Web that you might want to consider, like this one by Dominick Baier and this one on the netfx3.com site.