Is there a series of webcasts for Windows Identity Foundation. I don't seem to find any that talks about WIF in depth.
Have you seen
Also have you downloaded the WIF SDK? You'll need the WIF runtime installed before installing the SDK. The SDK contains a compiled HTML file that has a lot of good information on the WIF API inside (perhaps the best documentation at this moment that I've found along with the Windows Identity Foundation Whitepaper for developers).